2007 Mercedes-Benz S550 Engine cooling Problems
- Complaints
- 4about this part
- Share
- 7%of 54 total for the year
- Median mileage
- 62,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2007 Mercedes-Benz S550, 7% of the 54 complaints for this model year. Where a mileage was given, the median is 62,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2007 mercedes S550. While driving 40 MPH he heard a rattling noise from the front-end of the vehicle. The vehicle was taken to the dealer, and the motor mounts were replaced because they fractured. The manufacturer was notified, and a representative stated that the there was no recall related to the failure. The VIN was not available. The failure and current mileages were 50,000. Updated 3/24/10 the consumer also stated the transmission was replaced. Updated 06/14/10.”
NHTSA complaint #10286420, filed 2009-10, 50,000 miles“The contact owns a 2007 mercedes benz S550. The contact stated that the vehicle stalled momentarily before restarting independently. The failure recurred while driving at various speeds above 5 MPH, on an intermittent basis. No warning lights illuminated on the instrument panel after the failure. The vehicle was taken to an authorized dealer on numerous occasions and they were unable to diagnose the failure. The system was reset, but the failure continued. The manufacturer was not made aware of the failure. The failure mileage was 62,000.”
NHTSA complaint #10449086, filed 2012-02, 62,000 milesRelated service bulletins
- 10166978Feb 6, 2014Engine diagnosis warning lamp lights up - Fault code entry (FC) 14A600 or 14A700
- 10167554Jul 10, 2013Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit.
- 10034151Jun 7, 2010Mercedes: engine start/stop, engine starts up at random or 12 v on board electrical system voltage too low. The resistance of the electrical line from dc/dc converter control…
- 10028026Aug 1, 2008Mercedes: replace v belt upper guide pulley. The v belt upper guide pulley optimized for noise reduction is available. The dealer will replace upper guide pulley at the next…
- 10022893Apr 24, 2008Check engine light on / fault codes fc1200 / fc1208 stored in me-sfi control unit. Mercedes-benz model c230, c280, c350, slk280, slk350, clk350, clk550, e350, e550, cls550, s600…
- 10021381Feb 1, 2007Check transmission control module software and update if necessary (722.9 transmission); update engine control module software as required (m273 engine).
- 10022322Dec 1, 2006Replace abc high-pressure line; inspect coolant hose and replace if necessary.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2014 | 1 | 4% |
| 2007 | 4 | 7% |
Other parts of the 2007 Mercedes-Benz S550
13 complaintsSuspension
12 complaintsElectrical system
11 complaintsVehicle speed control
9 complaintsEngine
8 complaintsOther or unknown
6 complaintsFuel system
5 complaintsAir bags
3 complaintsSteering
3 complaintsBody and structure
3 complaintsBrakes
2 complaintsEquipment
1 complaints
← All problems reported for the 2007 Mercedes-Benz S550
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology