2018 Mercedes-Benz AMG GLC43 Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 33%of 6 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2018 Mercedes-Benz AMG GLC43, 33% of the 6 complaints for this model year.
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.
“Hi, Improper gear shifting. Vehicle engine light comes on with Error Code P073E, reverse gear cannot be engaged Vehicle would shift gear back into neutral position when put to Drive. When vehicle is able to be put in gear Reverse or Drive, a loud noise and shaking would occur. When driven, vehicle is in Limp Mode and can only go up of Gear 5. (this is a 9G Tronic, 9 gears in total) As I was backing up into street from a parking stall, I was not able to put the vehicle in Drive to proceed forward. Traffic was building up. Driver panicked. …”
NHTSA complaint #11520254, filed 2023-05“On May 14, 2023, with a little over 44,000 well-kept miles and under normal driving conditions, my 2018 GLC43 AMG blew smoke out the rear and soon after presented pooling oil under the transmission/engine area. Upon inspection by a reputable transmission repair specialist, AAMCO in Los Angeles, it was determined that the cause of the issue was a broken bolt head in the torque converter, resulting in significant internal damage. …”
NHTSA complaint #11527446, filed 2023-06Related service bulletins
- 11038187Sep 26, 2026Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic transmission…
- 11037987Sep 14, 2026Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load…
- 11037616Sep 4, 2026Complaint Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic transmission) and 725.1 (NAG3 facelift/9G‑TRONIC automatic transmission…
- 11036077Aug 5, 2026Complaint This document is intended as a pre-case diagnostic reference for transmission related concerns. It will also ensure that if a case is necessary, all supporting…
- 11035780Aug 4, 2026Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L…
- 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…
- 11033050May 22, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11032736May 15, 2026The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no…
- 11028834Feb 13, 2026Complaint Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure sensor 'A' has a short circuit to positive stored in VGS control…
- 11028270Feb 3, 2026Complaint Only vehicles with a variable transfer case are affected. This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 1 | 17% |
| 2018 | 2 | 33% |
Other parts of the 2018 Mercedes-Benz AMG GLC43
← All problems reported for the 2018 Mercedes-Benz AMG GLC43
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