2004 Mercedes-Benz A-Class (W168)
Browse our directory of 2004 Mercedes-Benz A-Class (W168) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2004 Mercedes-Benz A-Class (W168) has 3 known issues. 2 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
Rear axle and floor corrosion
SeriousOlder W168s can corrode around the rear axle mounts and floor seams badly.
Symptoms: Corrosion advisories, Crunchy jacking points
Est. repair cost: £400–£1,500+
CVT / Sequentronic gearbox failure
SeriousThe CVT and semi-automatic Sequentronic gearboxes can suffer from wear to the variator, clutch packs and mechatronic units. Repairs are often uneconomical on higher-mileage cars.
Symptoms: Whining noise from gearbox, Judder when pulling away...
Est. repair cost: £800–£2,500
Water ingress and electrical faults
ModerateBlocked sunroof drains and degraded door seals allow water into the cabin, which can corrode underfloor electronics and wiring connectors, causing random warning lights and intermittent faults.
Symptoms: Damp carpet in footwells, Random dashboard warning lights...
Est. repair cost: £100–£600
Buying Tips for the 2004 Mercedes-Benz A-Class (W168)
- ✓Only consider if truly rust-free underneath
- ✓Full Mercedes service history does not guarantee reliability
- ✓Independent specialist much cheaper than main dealer for repairs
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