crankshaft sensors on M104...
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 306
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300E W124, 300E W124 3.4 AMG, Audi S3 2002
crankshaft sensors on M104...
As i was planning a "tune up" on my M104 and while searching for parts online i found out that it does have two crankshaft sensors, with parts number 0021539228 (around 140$), and 0021531328 (around 50$).
I know one of these sensors will cause the car to die when hot or not to start easily, but i am wondering if those affects in anyways how the car runs (performance wise), and if they show any signs of wear.
Mines runs fine, so do i change them or keep it till it goes bad? at the end of the line i dont want to change the sensors if they dont affect anything else that the problem i stated above (which i dont have)
I know one of these sensors will cause the car to die when hot or not to start easily, but i am wondering if those affects in anyways how the car runs (performance wise), and if they show any signs of wear.
Mines runs fine, so do i change them or keep it till it goes bad? at the end of the line i dont want to change the sensors if they dont affect anything else that the problem i stated above (which i dont have)
Super Member
Joined: Oct 2008
Posts: 837
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From: seattle
1990 300ce supercharged and intercooled
If you are not having problems then there is no reason to replace one. If you want to test yours they should ohm out between 650-850 roughly depending on temperature. I can honestly say that in all the years I have been working on mercedes I have seen only a couple of bad sensors on this era engine. On the new stuff however I replace them constantly.
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 306
Likes: 1
300E W124, 300E W124 3.4 AMG, Audi S3 2002
so they dont affect the performance in any ways?
I never changed those neither in 10 years of owning two W124's, actually had no idea that they were available :S
I never changed those neither in 10 years of owning two W124's, actually had no idea that they were available :S
