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Standard Turnaround: 3 Working Days. Express Turnaround: 1–2 Working Days (+25%). Same-Day Drop-Off & Collection: (+40%)

Mercedes C-Class (W205) 9G-Tronic TCM Repair Service

P07B700 and P073E00 Repair Service

Mercedes C Class 9G-Tronic
Mercedes

C-Class

W205

W206

Common Faults

P07B700 and P073E00

Loss of Reverse Gear

Years

2015 - 2021

2022 - Present

Cost

£250.00 + PP

Common Fault

The Mercedes C-Class (W205) commonly suffers from internal faults within the 9G-Tronic Transmission Control Module (TCM), often triggering fault codes P07B700 – Pressure sensor signal is invalid and P073E00 – Reverse gear does not engage. These faults typically result in a range of drivability issues including loss of reverse gear, intermittent or complete loss of forward gears, jerky gear changes, and the gearbox entering limp mode. Warning messages or gear selection faults may appear on the instrument cluster, particularly after extended driving or when the vehicle is hot.

At VCUS, we offer a specialist repair service for the original 9G-Tronic TCM fitted to the W205 C-Class. We rebuild your unit using uprated components designed to withstand higher thermal stress, addressing the root cause of failure rather than simply replacing like-for-like. Our service includes comprehensive testing, a detailed repair report, and is backed by an unlimited mileage lifetime warranty — with no coding or adaptation required once refitted.

Part Numbers

A7252709011

A 725 270 90 11

A0009014900

A 000 901 49 00

A0009015000

A 000 901 50 00

0260550095

0 260 550 095

VGS-NAG3

Our Repair Process

Mercedes C-Class 9G-Tronic TCM Repair – Fast, Reliable & Cost-Effective

At VCUS, we specialise in repairing the Transmission Control Module (TCM) fitted to the Mercedes C-Class (W205) 9G-Tronic (725.0) gearbox. If you're experiencing fault codes such as P07B700 or P073E00, or symptoms like loss of reverse, gearbox limp mode, or jerky gear changes, our expert repair service offers a fast and affordable solution. Every unit is fully rebuilt using upgraded components, tested, and backed by our unlimited mileage lifetime warranty.

This is a plug & play repair — no coding or programming is required. Once repaired, simply refit the unit and enjoy full gear functionality again.

How to Get Your Mercedes C-Class TCM Repaired:

  • Remove the 9G-Tronic TCM from your Mercedes C-Class (W205).

  • Fill out our TEST FORM and select a convenient date for free insured collection.

  • Package the unit securely with adequate internal protection.

Or send it directly to:


VCUS
Vehicle Control Unit Solutions
27 St Michaels Square
Bramcote
Nottingham
NG9 3HG

We will receive, test, and complete the repair of your TCM.


No payment is required until the repair is complete.


Your rebuilt unit will be returned via Next Day Delivery.

Simply reinstall — no coding or adaptation needed — and drive away with confidence.

Why Choose VCUS for Your Mercedes C-Class TCM Repair?

  • Express and standard turnaround options available

  • No reprogramming or coding required – plug & play

  • Unlimited mileage lifetime warranty

  • More affordable than main dealer replacements

  • Hassle-free service with free UK-wide collection

Don’t let a faulty transmission control module keep your C-Class off the road. Book your repair with VCUS today and enjoy a fast, permanent fix with full peace of mind.

Quick Links

Automotive Solutions

Vehicle Control Unit Solutions Limited.

Limited Company Number: 15019362