spark plugs for 110 engine

[desert]

What would be the best spark plugs for the 110 engine in my 85 280SL Euro? (61K miles) Thanks, Desert

[tgolden]

Originally Posted by desert

What would be the best spark plugs for the 110 engine in my 85 280SL Euro? (61K miles) Thanks, Desert

The ones the owner's manual calls out; the OEM plugs.

Years ago I tried platinum core plugs in my 1984 280SL w/ M110.990 (Euro); the parts guy at my local parts store crossed the original spec to the platinum core and the performance was poor. I've had good performance from the original spec OEM plugs.

Regards

[rs899]

You probably need a non-resistor Bosch plug that is no longer made. Try an NGK equivalent.

[desert]

Thanks, I contacted NGK by phone on their Tech Advise line and they reccomened the BP6ES 7811 non resister and not the high priced one. "iredem" or whatever it is.....Desert

[rs899]

That sounds right. I think I have BP5ES in my 380SL, but that may be too hot

[desert]

Here's a follow up....I put the NGK non resister plugs in and now my radio sounds like a machine gun when it's on AM. Guess I'll go back to the Bosch. Maybe there is a cure for the radio noise with non resister plugs but I'm not aware of one, any suggestions?.....Thanks Desert