AI Damage2012 Mercedes-Benz C204: common problems
Owners of the 2012 Mercedes-Benz C204 filed 4 complaints with NHTSA, most often about electrical system and air bags. Details by component below, with sources.
Key figures
- Owner complaints
- 4
What fails most often
- 1 Electrical system 50% of all complaints
- 2 Air bags 25% of all complaints
- 3 Fuel/propulsion system 25% of all complaints
- 4 Steering 25% of all complaints
- Electrical system: 2 complaints (50% of all).
- Air bags: 1 complaints (25% of all).
- Fuel/propulsion system: 1 complaints (25% of all).
- Steering: 1 complaints (25% of all).
Symptoms owners describe
How many of the 4 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Steering | 1 | 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.
Esl sudden failure, apparently this is a very common failure for this vehicle for years now with no action to recall or address the design of this part. Car is immobilized and must be towed, but only to dealer who must program the part but not sell it to customer or other service center to repair or replace.
There's been several complaints on the electronic steering lock (esl) going bad. I experienced this danger exact failure. The car just hit 80,000 miles and this failure happened. When there esl locks, you cannot turn on the car to do anything.
This allows fuel to leak out of the top of the fuel pump and pool in the center of the pump where there are a number of electrical wires that are submerged in fuel.
I have received a letter from takata recall for my mercedes-benz's airbag replacement.
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 15,524 of 36,659 model years in the NHTSA data (top 42% most complained about).
On average one model year of the C204 has 4 complaints (4 years in the data). This year has 4, about average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Other years of this model
Questions and answers
What are the most common problems with the 2012 Mercedes-Benz C204?
Owner complaints to NHTSA most often mention: electrical system, air bags, fuel/propulsion system. Total complaints: 4. The most frequent symptoms in complaint texts: fuel system, fuel smell (25%), steering or power steering problems (25%).
How many service bulletins (TSB) were issued for the 2012 Mercedes-Benz C204?
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 2012 Mercedes-Benz C204 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 2012 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.