AI Damage2006 Mercedes-Benz CLS: common problems
Owners of the 2006 Mercedes-Benz CLS filed 3 complaints with NHTSA, most often about fuel system. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- Fuel system: 3 complaints (100% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel system | 3 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Fuel leak at top of sending unit underneath left rear seat. Fuel smell in car. I removed seat and cover and discovered fuel pooling.
Have taken my cls into the dealer for other things and advised them that I noticed a fuel smell in the car. They said they could not find anything, so on my way I go.
I took it to mike smith mercedes on sept 3, 2013 talked to service rep, he said it may be the fuel pump sending unit. He said it was going to take all day for them to get to it and that it probably would cost several thousand to fix. I then took it to mercedes service, lp in beaumont tx.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 17,152 of 36,659 model years in the NHTSA data (top 47% most complained about).
On average one model year of the CLS has 2 complaints (3 years in the data). This year has 3, above average.
What to check before buying
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Mercedes-Benz CLS?
Owner complaints to NHTSA most often mention: fuel system. Total complaints: 3. The most frequent symptoms in complaint texts: fuel system, fuel smell (100%).
How many service bulletins (TSB) were issued for the 2006 Mercedes-Benz CLS?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2006 Mercedes-Benz CLS from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2006 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.