Car service workshop detail in Autoservis 1

Advice from the workshop

Car service advice: diagnostics, brakes, oil and Czech STK

Plain-English answers to common car problems: when an enquiry is enough, when it is better to call and what to prepare before visiting the workshop.

Find the answer you need

Choose a symptom or plan your next service

Search the guides below, or start with practical information about prices, Czech workshop terms and winter maintenance.

Clicking when turning

Exhaust smoke and the red oil warning

EPC warning and a hard brake pedal

handbrake not holding and engine cutting out

Ten new Czech–English practical guides

Eight new Czech–English practical guides

Six new Czech–English practical guides

Six new Czech–English practical guides

Four new Czech–English practical guides

Four new Czech–English practical guides

Winter essentials

Get ready for colder journeys

Start with the winter checklist, compare all-season and winter tyres or check when to arrange winter fitting. If starting, heating or visibility has changed, choose the relevant symptom guide below.

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Practical advice

Preparing your car for winter: what to check first

Start with the symptoms you have noticed, not a shopping list of replacement parts. A winter check should match the car, its maintenance history and the journeys you actually make.

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Practical advice

First service after buying a used car without records

If the service history is incomplete, the aim is to establish what is known, identify urgent faults and agree a sensible maintenance plan. It is not to replace every component at once.

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Choosing tyres

All-season or winter tyres?

Compare your routes, mileage, total costs and winter needs before choosing one set or two.

Compare the options
Practical advice

Signs of a weak car battery: what else can look similar?

Slow cranking or a click instead of a normal start can point towards a battery problem. Those symptoms alone do not prove that the battery needs replacing.

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Practical advice

Faulty alternator symptoms: battery or charging problem?

A charging warning or repeated flat battery needs investigation. A battery stores electrical energy; charging faults can leave it depleted even if the battery itself is serviceable.

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Practical advice

Humming wheel bearing: what the noise can tell you

A humming noise that changes with road speed deserves a check. Tyres, brakes and other rotating parts can sound similar, so a sound description alone does not identify a faulty bearing or the affected wheel.

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Practical advice

Worn brake symptoms: noises, vibration and pedal changes

A squeal is not enough to diagnose worn pads, and a quiet brake is not proof that everything is sound. Changes in stopping, pedal feel and heat deserve particular attention.

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Practical advice

Car air conditioning not cooling: what to report

Informational guide only. Autoservis 1 does not provide air-conditioning service.

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Practical advice

Suspension knocking over bumps: what needs checking?

A knock on rough roads is a symptom, not the name of a replacement part. Describe where and when it occurs so the workshop can choose a relevant inspection.

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Practical advice

Failed a Czech emissions test: what to do next

The full inspection report is the best starting point. A failed result is not a diagnosis of one particular part, and clearing fault codes alone does not repair the reason for failure.

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Practical advice

Worn clutch symptoms: slipping, judder and difficult gears

Rising engine speed without matching acceleration can indicate clutch slip. Noise, judder or difficult gear selection can have other causes too, so the whole symptom matters before recommending a replacement.

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Brake check before a longer trip
Pre-trip check

Car check before a long trip

A practical pre-trip checklist covering tyres, brakes, fluids, battery, chassis and when to call.

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Engine diagnostics with a warning light on
Vehicle diagnostics

Engine warning light

Practical advice for drivers when the engine warning light comes on. When diagnostics can wait and when it is safer to call.

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New brake discs and pads after replacement at Autoservis 1
Brake service

When to change brakes

How to recognise worn brakes, when to check discs and pads, and why brake issues should not be delayed.

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Czech STK preparation

Czech STK preparation

What to check before the Czech STK inspection: lights, brakes, tyres, chassis, fluids and visible issues.

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Oil service

When to change oil

How often to change engine oil, why long intervals can be risky and what to check during regular car service.

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Engine bay check for a car starting issue
Battery and starting

Car hard to start

Common causes of poor starting: battery, starter, charging, fuel or glow plugs. When to call a workshop.

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Customer car wheels and tyres
Tyre service

When to change to winter tyres

When to book seasonal tyre service and why tread depth, age, damage and wheel balancing matter for safe driving.

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Wheel bearing work during a chassis check
Chassis

How to recognise a chassis problem

Knocking, play, vibration and uneven tyre wear are signs that a chassis check makes sense.

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Diagnostics

How much does car diagnostics cost

Basic diagnostics from CZK 400, when fault-code reading is enough and when troubleshooting takes longer.

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Mechanic during a service check at Autoservis 1
Booking

When to call a car service

Situations where calling is better than a form: brakes, red warning light, fluid leak or a car that cannot be driven safely.

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Brake check when a car vibrates under braking
Brake service

Car vibrates when braking

What can cause vibration in the steering wheel, pedal or body, and when to book a brake check.

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Chassis and tyre check when a car pulls to one side
Chassis and tyres

Car pulls to one side

Tyres, brakes, chassis or alignment. What is worth checking first.

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Engine bay check when oil is leaking
Engine and diagnostics

Oil leak under the car

How to judge a fluid leak risk, when not to drive and what to send before a workshop check.

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Practical advice

Tyre slowly losing pressure: puncture, valve or rim?

A tyre that repeatedly loses pressure needs its cause checked. Adding air can reveal a recurring pattern, but it does not establish that the tyre is undamaged or suitable for repair.

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Practical advice

Car heater not working: cold air or weak airflow?

“The car does not heat” can describe several different problems. The most useful first distinction is whether the engine warms normally, the fan moves air and that air becomes warm.

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Practical advice

Losing coolant with no visible leak: what to record

A dry parking space does not rule out coolant loss. Some leaks occur only under operating conditions, remain on an undertray or need other investigation. Avoid jumping straight to a head-gasket diagnosis.

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Practical advice

Clutch pedal stays on the floor: do not force the journey

A pedal that will not return or no longer disengages the clutch is different from ordinary clutch wear. Do not try to compensate by starting in gear or changing gear without the clutch.

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Practical advice

Car using oil with no visible leak: measure before guessing

Oil consumption and an external leak are not the same problem, but both can reduce the level. An accurate top-up and mileage record helps far more than a guess about how many bottles have been used.

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Practical advice

Steering wheel vibrates at speed: wheels or suspension?

Vibration while driving without braking is not the same symptom as shaking when the brake pedal is pressed. Tell the workshop where you feel it and under what conditions it already occurred; do not reproduce it by driving faster.

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Practical advice

Rough or fluctuating idle: what to record before a check

Does the engine run unevenly while stationary, fluctuate or stall? Distinguish a brief change after a cold start from a new recurring problem. The symptom alone does not identify a part to replace.

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Practical advice

ABS or ESP warning lights: meaning and safe next steps

An ABS warning is not the same as a red brake warning. The combination of symbols, whether they remain lit and any change in braking or handling determine the next safety decision.

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Brake fluid · Practical advice

When to change brake fluid and what the service includes

Check the vehicle's brake-fluid schedule, service records and what a replacement quote includes. No universal interval or unverified fixed price.

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Hot wheel and brakes · Practical advice

One wheel gets hot or smells burnt: what to do

Unusual wheel-area heat, smell or smoke? When to stop, why not to check by touch and what to tell the workshop before arranging an inspection.

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Fuel consumption · Practical advice

Car using more fuel than usual: when to investigate

Petrol or diesel consumption increased? Compare fuel records and driving conditions, note related symptoms and request a targeted check instead of guessing parts.

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TPMS and tyres · Practical advice

Tyre-pressure warning after a wheel change: what to check

TPMS light after changing wheels? Check tyres and vehicle-specified pressures first. Reset versus a system fault, without promises of sensor programming.

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Spark plugs

When to replace spark plugs and what to check first

Find the correct spark-plug interval, check service records and distinguish scheduled replacement from fault investigation. No universal mileage for every engine.

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Musty air conditioning

Musty car air conditioning: filter, cleaning or a check?

Informational guide only. Autoservis 1 does not provide air-conditioning service.

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Fuel smell

Fuel smell in the car: safe next steps

Do not mask petrol or diesel smells with fragrance. When to stop, what not to do around a suspected leak and how to report it without another test drive.

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Engine overheating

Engine overheating: what to do when the warning appears

Temperature warning, steam or suspected overheating? When to stop, why not to open a hot cooling system and how to arrange checks without another test drive.

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Uneven tyre wear

Uneven tyre wear: what to check before replacing tyres

Inner-edge wear, worn centres or patches on a tyre? What to record, why a new set may not solve the cause and how to arrange a wheel and suspension check.

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Soft brake pedal

Soft or sinking brake pedal: safe next steps

A change in brake-pedal resistance or travel needs assessment. When not to drive, what to report and why a fluid change alone does not establish a repair.

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Windows fogging up

Car windows keep fogging up: moisture, ventilation or a fault?

Repeated condensation inside car windows: what to observe while parked, what to tell the workshop and how this differs from weak heating or musty ventilation.

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Bouncing after bumps

Car bounces after bumps: what needs checking?

Continued body movement or unsettled handling after a bump? What to record before a suspension check and why the symptom alone does not identify failed dampers.

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Wipers leaving streaks

Wipers leave streaks or miss patches: blades, glass or mechanism?

Streaks, juddering or unwiped patches? What to report, what to check while parked and why replacement blades alone may not resolve every wiping problem.

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Engine starts then stalls

Engine starts then stalls: what to record before diagnosis

The engine fires but stops again shortly afterwards? How this differs from prolonged cranking, what to tell the workshop and why repeated attempts are not a diagnosis.

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Off-centre steering after a pothole

Steering wheel off-centre after a pothole: what to check

A pothole or kerb impact changed the steering-wheel position? Safe next steps, wheel and suspension assessment, and why balancing is not the same as alignment.

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Battery flat after parking

Car battery goes flat overnight: why replacement may not solve it

Battery flat again in the morning? What to record about parking, charging and accessories, why not to replace parts blindly and how to arrange assessment.

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Squealing after starting

Squealing after starting: belt, pulley or another cause?

A new squeal after starting does not identify a failed belt. What to report, why sound alone cannot diagnose timing components and when to stop further attempts.

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Illustrative workshop photograph
Glow-plug warning light

Glow-plug warning light stays on or flashes: what to report

A diesel coil symbol before starting or while running? Why the exact vehicle handbook matters, what to record and why not to order glow plugs from the light alone.

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New practical guides

Clicking when turning

Distinguish repeated clicks, a single knock and humming before contacting the workshop.

Practical guide · 02

Clicking when turning: where is it from?

Clicking while turning or parking? Distinguish repeated clicks, a single knock and humming. What to report and why a sound alone cannot identify the failed part.

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In Czech and English

Quotes, timing drives, workshop terms and the DPF warning

Four practical guides with matching information in both languages. Switch language within each article.

Practical guide

Understanding a car repair quote in Czechia

Understand labour, parts, starting prices and approval of extra work. A practical guide to comparing car repair quotes in Czechia.

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Practical guide

Timing belt or timing chain? How to check your replacement schedule

Find the timing-drive information for your engine, check service records and understand what a belt or chain replacement quote should include.

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Practical guide

Czech car repair terms explained in plain English

A practical Czech–English workshop glossary: rozvody, spojka, podvozek, geometrie, přezutí, vyvážení, STK and common price-list terms.

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Practical guide

DPF warning light: what next?

A DPF light is not a universal instruction to drive for regeneration. Check your vehicle handbook and arrange appropriate diagnostics.

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New practical guides

Exhaust smoke and the red oil warning

Two practical guides in Czech and English: a safe first response, useful observations and how to agree an assessment.

Practical guide · 01

White, blue or black exhaust smoke: what to do

Smoke after starting or while driving? Distinguish vapour from unusual exhaust smoke, know when to stop and prepare useful details for an engine assessment.

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Practical guide · 02

Red oil warning light: pressure is not oil level

Red oil warning while driving? Stop safely and switch off. Why a correct oil level does not rule out a pressure problem and what to report before assessment.

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New practical guides

EPC warning and a hard brake pedal

Two practical guides in Czech and English: a safe first response, useful observations and how to agree an assessment.

Practical guide · 01

EPC warning light: what it means and what to report

EPC warning on? Distinguish it from the check-engine and ESP lights. What to record, when not to continue driving and how to arrange fault assessment.

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Practical guide · 02

Hard brake pedal: parked-car feel or a fault?

Does braking need unusually high pedal force? Distinguish a switched-off car, a newly hard pedal while driving and ABS pulsation — without a test drive.

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New practical guides

A handbrake that will not hold and an engine cutting out

Two practical guides in Czech and English: a safe first response, useful observations and how to agree an assessment.

Practical guide · 01

Handbrake not holding: what to do before an inspection

Handbrake not holding, long lever travel or an EPB fault? What to report, why cable tightening is not always a repair and how to arrange a check before STK.

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Practical guide · 02

Engine cuts out while driving: safe next steps

Engine suddenly stopped while driving? Put safety before diagnosis. What to record, how to arrange an assessment and why restarting does not confirm a repair.

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New practical guides

Ten new guides: symptoms, maintenance and repair decisions

Ten practical guides in Czech and English. Search a symptom or choose a maintenance topic to find useful next steps before contacting the workshop.

Practical guide · 01

Heavy steering or a power-steering warning: what to do

Steering suddenly heavy or a steering warning showing? Separate resistance from vibration, record useful details and agree a safe next step with the workshop.

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Practical guide · 02

Windscreen washers not spraying: freezing, a leak or a fault?

Washers not spraying, weak jets or fluid disappearing? Separate front and rear symptoms, freezing and leakage before arranging a useful workshop assessment.

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Practical guide · 03

Brake lights not working: one lamp or all of them?

One brake light out, all stop lamps failing or lights staying on? Useful observations, why a bulb is not always the cause and how to arrange an assessment.

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Practical guide · 04

Headlight condensation or water inside: when to get it checked

Fine mist, droplets or water collecting inside a headlight? What to record and why polishing the outer lens does not repair an internal lighting problem.

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Practical guide · 05

Milky residue under the oil cap: condensation or an engine concern?

Creamy residue under the oil cap? Separate a local deposit from changed oil, record other symptoms and understand why a photograph cannot diagnose a head gasket.

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Practical guide · 06

When to replace a diesel fuel filter and what the service involves

Check the correct diesel fuel-filter interval, identify useful service records and separate routine replacement from investigating hard starting or a warning.

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Practical guide · 07

Engine air filter vs cabin filter: which one does your car need?

An engine air filter is not a cabin filter. Understand the service items, check the correct replacement schedule and request suitable parts without guessing.

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Practical guide · 08

When to replace engine coolant—and why colour is not enough

Check your coolant replacement interval and correct specification. Why colour is not enough, what records help and when leakage or overheating needs attention first.

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Practical guide · 09

Car heater fan only works on high: what needs checking?

Cabin fan runs only on high or ignores speed settings? Separate control response from weak airflow and prepare useful information for a vehicle-specific assessment.

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Practical guide · 10

Is an older car worth repairing? Start with findings, not age alone

Assess an older car's repair using confirmed findings, upcoming maintenance, realistic alternatives and a clear budget—not a universal age or price threshold.

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New practical guides

Eight new guides: specific faults and planned maintenance

Eight practical guides in Czech and English. Search a symptom or choose a maintenance topic to find useful next steps before contacting the workshop.

Practical guide · 01

Hard to select first or reverse gear: what to tell the workshop

First or reverse gear difficult to select in a manual car? Useful observations, when to stop trying and how to arrange an assessment without guessing parts.

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Practical guide · 02

Start-stop battery replacement: AGM, EFB and registration

Planning a start-stop battery replacement? Check AGM or EFB requirements, the correct specification and any registration procedure before agreeing workshop work.

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Practical guide · 03

Engine not warming up or temperature dropping: what to check

Engine temperature stays low or drops during a journey? Separate the gauge reading from cabin heating and prepare useful details before requesting a check.

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Practical guide · 04

Old tyres with good tread: DOT dates and condition checks

Tyres have tread left but their age is unclear? Read the manufacture date, separate age from damage and prepare a condition check or replacement enquiry.

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Practical guide · 05

Engine oil level rising or above maximum: what to do

Oil level rising or above maximum? Separate measurement conditions, recent topping-up and a genuine change in the oil before arranging an engine assessment.

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Practical guide · 06

A car has stood for months: returning it to use

Returning a car to use after months parked? Gather its storage history, tyre and battery information and service records before agreeing an assessment.

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Practical guide · 07

Radiator fan runs after switching off: when to get it checked

Cooling fan still audible after switching off? Separate handbook-described operation from a new change and prepare useful details without disconnecting parts.

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Practical guide · 08

Noise when pressing the clutch pedal: what to record

A noise appears or disappears when you press the clutch pedal? Describe the change accurately and arrange a check without automatically ordering a bearing.

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New practical guides

Six new guides: specific faults and planned maintenance

Six practical guides in Czech and English. Search a symptom or choose a maintenance topic to find useful next steps before contacting the workshop.

Practical guide · 01

P0300–P0304 misfire codes: check the cause before ordering parts

A scan shows P0300, P0301 or P0304? Understand the misfire report, what to preserve and how to arrange an assessment without guessing replacement parts.

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Practical guide · 02

Car sitting lower on one side: spring damage or another issue?

One corner of your parked car looks lower or a tyre is closer to the arch? What to report, when not to drive and how to arrange a chassis assessment.

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Practical guide · 03

OBD readiness before a Czech emissions test: what to check

A scan says not ready after codes were cleared or a battery changed? Understand OBD monitor status and what to discuss before a Czech emissions test.

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Practical guide · 04

Service reminder, OIL or INSP: which maintenance is due?

Your car displays service, OIL or INSP? Check the model-specific meaning, distinguish maintenance from a fault warning and prepare records before booking.

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Practical guide · 05

Start-stop not working: normal conditions or a fault?

The engine no longer stops automatically at junctions? Distinguish unavailable start-stop from a fault message and prepare a useful workshop enquiry.

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Practical guide · 06

Water under the car after air conditioning: condensate or a problem?

Informational guide only. Autoservis 1 does not provide air-conditioning service.

Read the guide

New practical guides

Six new guides: fault codes, tyres and exhaust

Six practical guides in Czech and English. Search a symptom or choose a maintenance topic to find useful next steps before contacting the workshop.

Practical guide · 01

P0171 and P0174: a lean-mixture code does not identify a failed sensor

A scan shows P0171 or P0174? Understand lean-mixture codes, preserve useful evidence and arrange an assessment before buying an oxygen or airflow sensor.

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Practical guide · 02

P0420 and P0430: check the cause before replacing the catalyst

P0420 or P0430 does not automatically mean a new catalytic converter. Learn what evidence to keep and how to agree an assessment, repair scope and costs.

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Practical guide · 03

P0299 underboost: investigate the cause before ordering a turbo

P0299 and a loss of power? Understand what an underboost code establishes, which records to keep and why turbo replacement needs supporting findings.

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Practical guide · 04

How to read tyre size, load and speed ratings before an enquiry

What do 205/55 R16 91V and XL mean? Read the complete tyre marking and prepare a useful tyre-supply or fitting enquiry without confusing it with DOT age.

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Practical guide · 05

AdBlue warnings: low level, system fault and no-start countdown

Low AdBlue and an SCR system fault are different. Understand no-start warnings, preserve the exact message and confirm assessment availability before travel.

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Practical guide · 06

An exhaust that is suddenly louder: leaks, rattles and repair costs

A new exhaust rumble, hiss or rattle? Know what to report, when noise becomes a safety concern and what an exhaust repair or replacement quote should cover.

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New practical guides

Four new guides: tyres, CV boots and fault codes

Four practical guides in Czech and English. Search a symptom or choose a maintenance topic to find useful next steps before contacting the workshop.

Practical guide · 01

Tyre sidewall bulge: what it means and arranging a replacement

Found a bubble on a tyre sidewall? Understand why it is not an ordinary puncture and what the workshop needs to quote a suitable replacement safely.

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Practical guide · 02

Split CV boot: when a boot replacement may be enough

A split CV boot or grease near a wheel? Learn what needs checking before replacing a boot, joint or driveshaft and how to request a clear repair quote.

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Practical guide · 03

P0401 and P0402: investigate EGR flow before replacing the valve

A scan shows P0401 or P0402? Understand insufficient or excessive EGR flow, keep useful records and agree an assessment before buying a replacement valve.

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Practical guide · 04

P0087 low fuel pressure: check the cause before replacing the pump

A scan shows P0087? Why low fuel pressure does not confirm a failed pump, which records to keep and what to agree before diagnostics or replacement parts.

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New practical guides

Four new guides: flywheel, mounts, brake pipes and codes

Four practical guides in Czech and English. Search a symptom or choose a maintenance topic to find useful next steps before contacting the workshop.

Practical guide · 01

Dual-mass flywheel: checks before replacement and what affects the cost

Suspect a worn dual-mass flywheel? Understand the evidence for replacement, separate parts from labour and prepare a clear enquiry before approving repairs.

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Practical guide · 02

Engine and gearbox mounts: symptoms and checks before replacement

Body vibration or a knock as drive takes up? Understand powertrain mount checks, distinguish other symptoms and arrange an assessment before replacing parts.

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Practical guide · 03

Corroded brake pipes: inspection findings and arranging a repair

Brake-pipe corrosion recorded at a service or Czech STK? Understand the finding, when not to drive and how to agree an inspection and repair scope safely.

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Practical guide · 04

P0335 and P0336: investigate the circuit before replacing the crankshaft sensor

A scan shows P0335 or P0336? Understand what the codes indicate, why the crankshaft sensor itself may not be faulty and what records help a focused assessment.

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Quick orientation

Frequently asked questions about car service advice

When should I book a workshop visit after reading the advice?

Book a visit if the issue involves brakes, a red warning light, fluid leak, strong vibration, poor starting or a symptom that keeps coming back.

Can the advice help choose the right service?

Yes. The articles link to related services such as diagnostics, brakes, tyre service, oil service, chassis checks and Czech STK preparation.

What should I write in the request?

Include the make and model, the main symptom, when it appears, whether a warning light is on and your preferred appointment time.