Mercedes-Benz SL320 (1996–1999 R129) Transmission Control Module (TCM) Repair Service
Mercedes-Benz SL320 (1996–1999 R129) Transmission Control Module (TCM) Repair Service
Pre-Authorization Required
Please obtain approval prior to placing your order
Request Order AuthorizationBusiness Hours
Monday - Friday
9:30 AM - 4:30 PM EST
Phone support is for general inquiries only. We do not provide technical advice, solutions, troubleshooting, or pricing information over the phone. Pricing may vary depending on the work required on your module. For technical assistance and accurate pricing, please submit your request via Request Order Authorization.
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How to Get Your Unit Repaired:
How to Get Your Unit Repaired:
Purchase our repair service, verify that the symptoms or fault codes align with the issues you're experiencing, and then ship your part to us. If you're unsure whether this repair service will resolve your issue, please contact us, and we'll guide you through the process.
This repair service covers:
This repair service covers:
Each part undergoes thorough testing on our bench both before and after repair to ensure optimal functionality. If the unit is functional, shows no issues during testing, or is deemed non-repairable, a bench fee will apply. Some exceptions may apply
Turnaround:
Turnaround:
2-3 business days. Exceptions may apply; more complex repairs may take longer, please contact us for more details.
Warranty:
Warranty:
Our 6-month warranty covers only the specific repair we performed.
Programming & Coding:
Programming & Coding:
Not required. Simply plug and drive once the repair is complete.
Mercedes-Benz SL320 (1996–1999 R129) Transmission Control Module (TCM) Repair Service
Restore proper shifting performance in your Mercedes-Benz SL320 (1996–1999 R129) with our expert Transmission Control Module (TCM) Repair Service. If you're experiencing harsh shifting, limp mode, or communication errors with the transmission system, a faulty TCM could be the cause.
We specialize in repairing and restoring original transmission modules to factory functionality using premium components and advanced diagnostics—preserving your original programming whenever possible.
Common Symptoms of a Faulty TCM:
- U0101 - Lost Communication With TCM
- P0700 - Faulty Transmission Computer Module
- P0613 - Internal TCM Problem
- P0604 - Internal TCM
- P0605 - Internal TCM
- P0614 - ECM/TCM Incompatible
- P1698 - No CCD/J1850 Message From TCM
- P0748 - Pressure Control Solenoid A Electrical
Vehicle Compatibility:
- Mercedes-Benz SL320 (R129 chassis)
- Model Years: 1996, 1997, 1998, 1999
Important Notes:
- This service is for the repair of your original TCM. It is not an exchange or new unit.
- Severe water damage or tampering may render the unit unrepairable (you'll be contacted if that's the case). *If your module has water damage or does not communicate, a bench testing fee will apply.
- Original coding is retained unless otherwise specified or requested.
