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John — 24/02/2017
Transmission Control Module
The service from ECU testing was first class.
I sent them the control module from my Mercedes CLK350 7G-tronic gearbox. They contacted me immediately upon receipt, kept me up to date of its progress through their system and returned it to me repaired within a few days. I was able to get my transmission repaired for a fraction of the cost it would have been from Mercedes, thanks to ECU testing.