P0128

harriet1

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Jan 26, 2012
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bristol
Your Mercedes
c230
Hi all down on my holidays and engine light has just came on RAC read the code and is P0128 I know thats its a thermostat or sensor problem whats the best way to start looking on a 2007 2.5 V6 petrol engine temp seems ok thanks
 

Naraic

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Your Mercedes
2005 CL500.
P0128 is saying the engine is not quite coming up to temp. So, running cool. You may need a new stat...but carry on with your holiday and get it checked when you get home.
 

c15htn

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Jan 19, 2013
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Milton Keynes
Your Mercedes
'00 A208 CLK320 Convertible.
Take it to someone who has STAR diagnostic equipment, that will tell you exactly what's wrong & where.
 
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harriet1

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bristol
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c230
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Hi and thanks for getting back do you think it might be the temp sensor as the engine temp rises to 80 in about 10 minutes and the RAC man could not clear the code when the engine was not running and cold thanks
 

WG M-B

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North west london
Your Mercedes
C63 Wagon in black
This will be a thermostat. Common on the m272 engine
 
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harriet1

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c230
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thermostat

Hi and thanks for all the advice down in Truro Cornwall rang the local main deale quoted 375 for a replacement thermostat you must be kidding can any one give me the part number eurocar parts 75 with the promotion code and about an hour of my time can any one beat this price thanks
 

topsar

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Dec 15, 2023
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c180
my 2018 c180 ( 80Kmiles ) had this p0128 error previously, i changed the o2 sensor and battery cables and now i had no. You have to read obd scanner tool descriptions carefully, because if you want to do it your self for fixing, you need some know-how.
 


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