2021 Mercedes-Benz Mercedes-Amg-S-Class Transmission Computer
Find quality transmission computer parts for your 2021 Mercedes-Benz Mercedes-Amg-S-Class. Compare prices from multiple sellers.
Free Search • No signup required • Instant access
3 Ways to Find Your 2021 Mercedes-Amg-S-Class Transmission Computer
Online Search
Search by part name
Search our database of transmission computer parts. Find matching parts from verified online sellers with prices and shipping info.
- Compare prices from multiple sellers
- See shipping costs upfront
- Filter by condition (new/used)
Start searching
Image Search
Upload a photo
Don't know the exact part name? Take a photo of your transmission computer or the broken part. Our AI identifies it.
- AI-powered part identification
- Works with any photo
- Find exact OEM part numbers
Try image search
Local Pickup
Find nearby sellers
Find transmission computer parts for local pickup. Save on shipping, inspect parts in person, and get them same day.
- No shipping costs
- Inspect parts before buying
- Get parts same day
Find local parts
About the Transmission Computer
The Transmission Computer (TCM/TCU) controls automatic transmission shifting, torque converter lockup, and gear selection. A failing TCM causes harsh shifting, stuck gears, limp mode, and transmission warning lights.
Signs of Failure
- Harsh or delayed shifting
- Transmission stuck in one gear
- Limp mode / failsafe mode
- Check engine light with transmission codes
- Transmission slipping
- Won't shift into overdrive
- Erratic shifting patterns
- No reverse gear
- Transmission overheating
Replacement Info
TCM replacement typically requires programming to match your vehicle. Some used TCMs from identical vehicles may work plug-and-play. The TCM is often located on or near the transmission, or inside the vehicle near the ECU. Always verify programming requirements before purchase.