the glow plug on no.5 cylinder (behind the oil filter} is sheered off with half of the plug remaining in the pre cumbustion chamber ,still in thescrewed in position.
any suggestions on how to remove this short of opening the head?????

You may have to remove the oil filter housing to access the hole to extract and tap it out.

------------------
Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Did all of the threaded part come out? If the ceramic end-piece is the only part stuck in the hole...why not put the other glow plugs in it and start the car? If you're lucky,the piece will blow out after it starts. If not,the prechamber has got to come out anyway (worst case,maybe the head has to come off). I don't think you've got much to lose here. If the piece drops into the prechamber,its not going anywhere.
Regards,
Randy D.

------------------
W.R.Durrance
ASE Master Tech
Mercedes Tech 19 Years

the car is running fine with 4 glow plugs. it is the starting in very cold weather that bothers me . the glow plug is still screwed in . the screwed part did not al come out.