Mercedes A & B-Class 722.8 TCM – Turbine Speed Sensor & Bond Wire Repair
From January 1st, 2026, we will be strictly Trade Only for New Zealand Info here
Price Exclusive of GST
Our minimum assessment fee is $150 + GST (Excluding Headlights) this just covers the time to check the unit over. If you go ahead with the repair, we’ll put this towards the total cost. Our full terms of trade is the link can be found here
International Customers:
When sending a unit from overseas, please declare it as “Repair and Return” with a low customs value (around $100 USD) to avoid unnecessary import fees. - All Repair Prices are quoted in NZD
Mercedes A & B-Class 722.8 TCM – Turbine Speed Sensor & Bond Wire Repair
This is a repair service for the Transmission Control Module (TCM) used in Mercedes A-Class and B-Class vehicles fitted with the 722.8 CVT automatic transmission.
Common failures include:
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Turbine speed sensor faults (Y3/9b4)
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Internal bond wire failure
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No gear engagement or limp mode
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Transmission-related fault codes
We address both sensor and bond failure issues, replacing faulty components and restoring full TCM functionality.
Compatible with:
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Mercedes A-Class W169 (2004–2012)
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Mercedes B-Class W245 (2005–2011)
All repairs are fully tested before return and include a 12-month warranty.
Note: This is a repair service – your TCM must be sent to us for repair.