2004 Mercedes-Benz SL: common problems and reliability
The 2004 Mercedes-Benz SL has 62 owner-filed NHTSA complaints and 0 recalls on record. The most-reported areas are suspension and service brakes. Owners most often flag *r230 generation (very frequent themes):.
Safety record for the 2004 model year
62
Owner complaints
0
Recalls
4
Crash reports
3
Fire reports
Source: NHTSA complaints and recalls filed for 2004 Mercedes-Benz SL vehicles (US, public record).
Where owners report problems
suspension
23
service brakes
15
electrical system
8
fuel system
7
gasoline
7
What owners say across generations
Sentiment varies dramatically by generation and is heavily influenced by ownership expectations. The R129 generation (1990-2001) is universally praised in community feedback as a timeless, well-engineered, and durable classic, representing a peak in Mercedes-B
*R230 Generation (Very Frequent Themes):
Trunk water leaks — Leads to multiple electrical failures. Frequency: very frequent.
PSE (Pneumatic System) pump failure — Often caused by water ingress; controls roof, locks, and lumbar support. Frequency: very frequent.
SBC (Sensotronic Brake Control) pump failure — Limited actuation life leads to expensive replacement or repair. Frequency: very frequent.
ABC (Active Body Control) suspension failures — Expensive bag and strut replacements. Frequency: very frequent.