Transmission Control Unit Cost??? - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 07-25-2011, 07:32 AM Thread Starter
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Transmission Control Unit Cost???

Does anyone know whats a average cost for a Transmission Control Unit for CLK 320 or where I can order one without going to a dealship???

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post #2 of 3 (permalink) Old 07-25-2011, 10:15 AM
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Please complete your profile, including year, model and location. That information would be useful to those who might care to offer assistance on this question.
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post #3 of 3 (permalink) Old 07-25-2011, 10:44 AM
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It's also useful to post what is going on. If all you want is parts, google is a great place to start.

A good majority of the time the issue is that the pilot bushing has allowed fluid to run up the harness and soak the TCM, causing shorts and transmission error codes. The typical repair (for a DIY or indy anyway) is to replace the plug, remove the TCM and clean it and the box with electrical cleaner (including shooting some down the harness to flush it out) and replace after it dries. Then set the level on the transmission, clear the transmission codes and go driving.

Dealers won't do that. They'll simply shotgun it and may also include the conductor plate, so what starts as a $50 repair for the DIYer (including the cost of the plug, fluid, dipstick tool and cleaner spray) is $1,200+ by the time the car is ready to go.

You can read a wealth of information about your transmission in the W210 stickies in a thread named 722.6xx FAQ -- it's the same transmission as in your Click.

Good luck.

And plus two on completing your profile, click user cp and edit details to get to the page that lets you update it.

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