2007 Mercedes-Benz R320 Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 7%of 14 total for the year
- Median mileage
- 45,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2007 Mercedes-Benz R320, 7% of the 14 complaints for this model year. Where a mileage was given, the median is 45,000 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.
“Transmission model 722.9 failure while driving. Creates an extremely dangerous situation that could lead to fatal accidents. Transmission completely disengages bringing car to stand still, or it downshifts without any warnings at high speed. Feels like the entire transmission is dropping off the car. My car had only 45k miles on it when it first exhibited this problem. Now it cost more than retail value of the car to replace this transmission.”
NHTSA complaint #10954392, filed 2017-02, 45,000 milesRelated service bulletins
- 11035005Jul 14, 2026Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of…
- 11025648Nov 15, 2025Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse…
- 11019018May 21, 2025Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse…
- 11013298Jan 16, 2025Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse…
- 10135653Oct 27, 2014Procedure in case of slight oil traces on TRANSMISSION 722.9
- 10135649Oct 23, 2014Procedure in case of slight oil traces on TRANSMISSION 722.9
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2007 | 1 | 7% |
Other parts of the 2007 Mercedes-Benz R320
3 complaintsEngine
3 complaintsBody and structure
2 complaintsSuspension
2 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSeats
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2007 Mercedes-Benz R320
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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