Mercedes SLK BCM / Comfort Control Module Repair

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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 SLK BCM / Comfort Control Module Repair
Intermittent Faults – Full Relay Replacement

This is a repair service for the Body Control Module (BCM) / Comfort Control Module in Mercedes-Benz SLK models, addressing intermittent electrical faults.

Common Symptoms:

  • Random loss of lighting, locks, or windows

  • Intermittent operation of comfort features

  • No communication with control systems

  • Relay clicking or failure to activate outputs

We perform a full relay replacement on the internal PCB, resolving the root cause of these failures and restoring reliable operation.

Questions about this repair?