2004 Mercedes-Benz SLK (R171)
Browse our directory of 2004 Mercedes-Benz SLK (R171) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Showing 40 registrations for the 2004 Mercedes-Benz SLK (R171). Select any plate for an instant vehicle history check.
Common Problems & Reliability
The 2004 Mercedes-Benz SLK (R171) has 2 known issues. 1 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
M272 V6 Balance Shaft Wear
SeriousEarly 3.0L and 3.5L V6 engines used soft metal gears on the balance shaft. The gears wear down, altering engine timing and requiring a massive engine-out repair.
Symptoms: Engine management light (codes P0016/P0017), Rough idle...
Est. repair cost: £2,500–£4,000
Vario-Roof Hydraulic Leaks
ModerateThe complex folding hardtop uses multiple hydraulic cylinders that can leak as the seals age.
Symptoms: Roof slow to open/close, Hydraulic fluid dripping onto the headlining or in the boot
Est. repair cost: £300–£1,000
Buying Tips for the 2004 Mercedes-Benz SLK (R171)
- ✓Check M272 engine number against affected range
- ✓Test roof operation multiple times
- ✓Inspect for rear subframe corrosion
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