Mercedes CL550 intercooler

Asked by Scott Sep 04, 2018 at 06:44 PM about the 2012 Mercedes-Benz CLS-Class CLS 550 4MATIC

Question type: Maintenance & Repair

Hi All,

My dealership just told me that I need to replace my intercooler due to a leak.  This leak has dripped on a spark plug and caused it to go bad, thus needing to replace the spark plugs and wiring.  I'm a bit confused as I thought the spark plugs were covered.  Am I being taken by my dealership?  I should also point out that they have had to add a small amount of coolant each time I was in for service while it was IN WARRANTY!  Not it is not and they are quoting me $4100 to fix the issue.

2 Answers

F_O_R answered 5 years ago

Intercoolers are usually in front of the radiator so I am not sure how it could leak onto the engine. Not only that you need to check and see if you have a liquid cooled intercooler or air to air. Take it to a good independent shop for another opinion.

Mark helpful

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