Since this is an M104 engine, it is always advised to change the three (3) coil supressor boots while you're at it.

They are the source of 99% of all misfire problems.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".