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TheUwe

Heating problems and warning lights in 2021 Mercedes CLK Class Diesel with 129,343 km mileage

Blower does not work properly

Insufficient Cooling/Heating

Warning light in the speedometer of the vehicle

Hey guys, I have a few problems with my 2021 Mercedes CLK class diesel and already have 129,343 km on the clock. The heating/ventilation isn't working properly and the warning light in the speedometer is coming on. I suspect that it has something to do with the outside temperature sensor. Do any of you have experience with such symptoms and can give me some information? How did it go with your mechanic? I didn't have such a good experience last time. Many thanks in advance!

(Translated from German)

5 comment(s)


Best Answer

AstridSpeedster

Can really empathize with your pain, I had exactly the same problems with my 2018 Mercedes E-Class Diesel. It was indeed the outside temperature sensor. It turned out that the cable or plug connection from the sensor was defective. A really serious problem because my heating wasn't working properly either and the warning light kept coming on. During the last visit to the garage, the mechanics replaced the defective sensor and checked and repaired the cable connections, as these were also damaged. This was not a quick job, but everything ran smoothly again afterwards. Hope this helps you, good luck!

(Translated from German)

TheUwe (Author)

Hey thanks for the reply! Great that you had the same problem and it was solved. Do you happen to remember how much you had to pay for it? And has there been anything new since then, or is everything running smoothly now? Regards!

(Translated from German)

AstridSpeedster

Hey, no problem! So, the repair cost me €155. A decent amount, but since then the malfunctioning outside temperature sensor has been fixed and I've had no further problems with the heating/ventilation. So I would say it was worth the money. Since the visit to the mechanic, everything has been running perfectly. Hope this helps and good luck with your car! Greetings back!

(Translated from German)

TheUwe (Author)

Great, thanks for the information! It definitely helps with the budget planning. Then I'll go to the mechanic tomorrow and have it checked. Hopefully everything will go as smoothly as it did for you. Thanks again!

(Translated from German)

Sammy4xrist

Why is my Mercedes b200 developing a change of weird sounds? The sound fades mostly when making a left u-turn, and continues when on a straight path.

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