Went to change the spark plugs today and found oil in the hole of the spark plug nearest the back of the engine. The other 3 all looked fine and dry. I soaked/cleaned away as much of the oil as possibly and changed all the spark plugs. I'm now concerned some oil may have gone down the spark plug hole. Should I be worried about this? Also how did the oil get there and is this diy fix or an indie job?
The car is a 99 c class (w202) with 70,000 miles. The plugs were last changed about 4 years ago. The car still drives very smoothly.
Thanks in advance for any advice.
The car is a 99 c class (w202) with 70,000 miles. The plugs were last changed about 4 years ago. The car still drives very smoothly.
Thanks in advance for any advice.