I have an '89 190E 2.6. I tried removing the spark plug wires by hand and they were stuck tight. I could rotate them but not pull them off. I got a spark plug removal tool from AutoZone and still could not pull them off. Just destroyed one of the spark plug wires. Is there a secret to getting the wires off? I'm afraid of breaking a spark plug if I continue to pull harder.
Thanks, Jim in Houston