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Check Engine AGAIN

526 Views 2 Replies 2 Participants Last post by  mbenz7
The check engine light is back..the self diag. system is giving me error code 8 which is "Engine coolant temp. sensor, Open circuit"... The problem is that i have already replaced it. so why is it giving me the same error...AGAIN
I bought the part from allmercedes.com part # is 0085424517 (just for ref. only)....Need help plz
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