I got a used 2001 Mercedes SLK 320 I just replaced the battery in the key fob not sure how the key fob was without a battery . Because the one that was in there originally was rusted . Now I go to “START ERROR “ code. The battery is good. I acts like it’s gonna start then just shuts off. I tried the unplugging the battery and having the car in the on position for 30 mins. The car was running fine before I changed the key fob battery . Any ideas
Sharkey1989
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I agree with Jeff. "Start Error" means the immobiliser system is preventing the car from starting. The chances of it happening just after you took the key fob apart, and it not being related, are pretty slim. If the immobiliser chip has been lost, and no spare key - then sadly, it's a bit of an adventure, but not impossible, to rectify.
Faulty CPS will not produce "Start Error" in the odometer screen.
From what I have read on here, only one fault will produce a Start Error message in the odometer screen, and that's an immobiliser problem.
You said the car was running before you changed the key fob battery, so there must have been an immobiliser chip in the key fob.
The immobiser chip and the remote door locking are unrelated - except that they both reside in the same fob. Two completely separate functions and the battery is only used for remote locking.
The immobiser chip and the remote door locking are unrelated - except that they both reside in the same fob. Two completely separate functions and the battery is only used for remote locking.
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