Mercedes-Benz A-Class W169 (2004-2012): known problems and buying guide

Built: 2004–2008
Median price: €2,700
Listings: 1,590
Running cost per month: €398–€438
Power: 82–136 PS (60–100 kW)
Reliability: 2/5
DIY: 2/5

Check the Autotronic CVT fluid record and door seam rust before paying, and walk away from a gearbox that stalls in gear.

Updated 26 October 2026

All versions

Variant	Running cost per month	Median price	Listings	Fuel	Engine codes	Gearbox	Production years
A 150, 95 PS, 5-speed manual	€398	€2,500	397	Petrol	266920	Manual (5)	2004–2008
A 170, 115 PS, 5-speed manual	€420	€2,380	211	Petrol	266940	Manual (5)	2004–2008
A 150, 95 PS, automatic	€409	€3,950	182	Petrol	266920	CVT-Getriebe	2005–2008
A 180 CDI DPF, 109 PS, 6-speed manual	€414	€1,999	174	Diesel	640940	Manual (6)	2004–2008
A 170, 115 PS, automatic	€420	€4,200	141	Petrol	266940	CVT-Getriebe	2005–2008
A 180 CDI DPF, 109 PS, automatic	€420	€2,900	101	Diesel	640940	CVT-Getriebe	2005–2008
A 160 CDI DPF, 82 PS, 5-speed manual	€402	€1,950	72	Diesel	640942	Manual (5)	2005–2008
A 200, 136 PS, 5-speed manual	€438	€2,000	61	Petrol	266960	Manual (5)	2004–2008
A 200, 136 PS, automatic	€438	€3,800	53	Petrol	266960	CVT-Getriebe	2005–2008

At a glance

Years: built 2004 to 2012. The facelift came in spring 2008.
Reliability: 2/5. The Autotronic CVT gearbox and door seam rust are the costly faults.
DIY: 2/5. Fluid checks and sunroof care are easy. CVT and body work need a workshop.
Prefer: a manual gearbox. Avoid: an Autotronic car with no CVT fluid records.
Watch for: rust on the lower door edges, door seams and tailgate, and a stiff electric steering.
Biggest risk: a failing Autotronic CVT gearbox. A control unit replacement costs about 1,500 EUR.

Engines and gearboxes

Petrol M266, A 150 and A 170: the better petrol choice. gebrauchtwagenberater.de reports no known problems on these. The fuel vent line recall covers 2010 cars.
Petrol M266, A 200 Turbo: no fault confirmed in the sources read.
OM640 diesel, A 160, A 180 and A 200 CDI: two German sites name the EGR valve and the dual-mass flywheel as weak points, with no symptoms or prices. Ask for records of both.
Autotronic CVT (optional on all engines): the main gearbox risk. Buy only with fluid change records. See Known issues.
Manual gearbox: the preferred choice. Garage and press sources advise it over the Autotronic.

Known issues

Issue	Affects	Typical km	Repair cost
Autotronic CVT gearbox	Autotronic CVT, optional on all engines	From about 50,000 km (warning); the gearbox itself rarely fails before 200,000 km	About 1,500 EUR for the control unit (AUTO BILD, Germany, year not stated)
Door seam and tailgate rust	All bodies, worst before mid-2006 builds	Not stated	About 1,000 EUR for five doors (AUTO BILD, Germany, 2008)
SAM module faults	Not stated	Not stated	No confirmed price
Sunroof leaks and jamming	Slatted sunroof (Lamellendach)	Not stated	No confirmed price
Brake disc and hose wear	All model years, more with age	Not stated	No confirmed price
Electric steering stiffness	Electric power steering	Not stated	No confirmed price

Before you buy

Ask for the Autotronic fluid change records. Fluid should change every 50,000-60,000 km. No records is a bad sign, because a faulty control unit costs about 1,500 EUR (AUTO BILD, Germany, year not stated).
On the test drive, check for stalling in gear, a car that will not move, or a gear that hangs in first. A gearbox warning that says visit the workshop is a bad sign. A scanner reads the gearbox fault codes.
Look at the door seams, lower door edges and tailgate for rust. Tiny dark dots under the sealant are early rust. Bubbles in the paint mean advanced rust. Five doors cost about 1,000 EUR to replace (AUTO BILD, Germany, 2008).
Open and close the slatted sunroof. Look for water marks inside. A jammed slat or a leak is a bad sign.
Switch on every light, the wipers and the display. A dead item can come from a failing SAM module, which controls them.
Turn the steering at parking speed. Stiff steering when parking points to a failing electric steering.
Look for worn brake discs and cracked brake hoses. Plan to replace them if they are worn.

Running costs

Operational	€195
Workshop	€104
Fixed costs (tax, insurance)	€121
Total per month	€420
New-car depreciation (not included)	€51

ADAC figures for 15,000 km a year over 60 months

Market

Listings on mobile.de priced up to 50,000 EUR, 29 October 2026.

Find offers on mobile.de

Listings: 1,590
25th percentile: €1,800
Median price: €2,700
75th percentile: €3,900
Median mileage: 167,173 km
Median first registration: 2006
Dealer share: 52.1%
Price at 100,000 km: €4,115

To check a listing's price, open its variant in the table above. Each variant page has a price check.

In detail

Autotronic CVT gearbox

The Autotronic is an automatic gearbox with a continuously variable transmission (CVT). It has no fixed gears. It was optional on all engines.

Garage and press sources name the control unit on the valve body as the most common fault. The valve body is the hydraulic control block. Speed sensors also fail. The valve body can crack from temperature swings and leak oil. Overheating and long use without an oil change speed up wear. ARK-SERVICE, a garage writing on DRIVE2, adds operation below -25 C as a risk.

Symptoms: the engine stalls in gear, the car will not move or reacts slowly to the throttle, and the gear hangs in first. Warnings can appear from about 50,000 km. The gearbox itself rarely fails before 200,000 km, according to the DRIVE2 repair write-up by darkelektrik. The thrust link belt can wear early and damage the transmission (two sites).

Fix: replace the control unit, the valve body, or the whole unit. A used gearbox is another option. A control unit costs about 1,500 EUR (AUTO BILD, Germany, year not stated). Fluid changes every 50,000-60,000 km use the approved fluid.

Sources: auto.ru, common faults of used W169 hatchbacks, gebrauchtwagenberater.de, W169 problems, DRIVE2, CVT 722.8 faults and prices, MBClub, Mercedes A-Class auto any good, AUTO BILD, used car test Mercedes A-Class W169 (2015), DRIVE2, CVT failure causes and costs (darkelektrik)

Door seam and tailgate rust

Rust starts on the lower door edges, the door seams, the tailgate and the bonnet. The cause is the sealant. Elastic sealant was put on bare metal at the seams before the dip coating. Moisture under the sealant rusts the metal unseen.

Mercedes changed the sealant in June 2006 to a smooth type with better protection. Cars built from mid-2006 have the newer sealant (sources differ slightly on the exact date).

Dealers repaired many cars under goodwill (Kulanz). Severe cases need new doors. Five doors cost about 1,000 EUR (AUTO BILD, Germany, 2008). Blending the neighbouring paint is usually at the owner's cost.

Sources: AUTO BILD, corrosion on Mercedes A and B-Class (2008), PistonHeads, A Class worth a look, gebrauchtwagenberater.de, W169 problems, auto.ru, common faults of used W169 hatchbacks

SAM module faults

The SAM is the body electronics module. It controls lights, wipers and displays. Two sites report that it can fail, and that the faults show up in these systems. The sources give no fix or price.

Sources: gebrauchtwagenberater.de, W169 problems, CarWiki, Mercedes A-Klasse W169 problems

Sunroof leaks and jamming

The slatted sunroof (Lamellendach) can leak water in some cases. Check for water ingress. The joints on the first slats can jam. AUTO BILD advises regular lubrication with a special grease. The sources give no price.

Sources: gebrauchtwagenberater.de, W169 problems, AUTO BILD, used car test Mercedes A-Class W169 (2015)

Brake disc and hose wear

Brake discs wear more often than on average, and braking quality falls with age. Brake hoses wear more often too (AUTO BILD, 2026). Brake pipes can corrode, and rubber hoses crack with age (auto.ru). Inspect pipes and hoses by eye. The sources give no price.

Sources: AUTO BILD, used Mercedes A-Class check (2026), auto.ru, common faults of used W169 hatchbacks

Electric steering stiffness

The electric power steering can turn stiff, especially when parking. Two sites report it. The sources give no fix or price.