drove the 300SD yesterday no problems--- put it in garage overnight--Went to start it this morning --- Glow plug light on dash did not light---cranked engine ---cranks good---but does not fire ---any ideas would be welcome --thanks --syd

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syd 81.300SD.196k
72.300SEL 4.5
mileage.Only god knows!

There is a 80A fuse in the preglow relay, its a strip fuse w/2 phillips screws. If its blown possibly one or more of the glow plugs are bad.

sounds good :D---QUESTION where would this preglow relay and strip fuse be located---QUESTION What is the best way to check the glow plugs--

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syd 81.300SD.196k
72.300SEL 4.5
mileage.Only god knows!


[This message has been edited by SYDDONNA (edited 06-27-1999).]

[This message has been edited by SYDDONNA (edited 06-27-1999).]

[This message has been edited by SYDDONNA (edited 06-27-1999).]

[This message has been edited by SYDDONNA (edited 06-27-1999).]

The glow relay is located on the fender under the hood and it looks like a black box with a cover over the top. The fuse is inside of the box. The glow plugs should be checked dynamicaly with an amperage reading.

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM




[This message has been edited by Benzmac (edited 06-27-1999).]

The glow relay is located on the fender under the hood and it looks like a black box with a cover over the top. The fuse is inside of the box. The glow plugs should be checked dynamicaly with an amerage reading.

------------------
Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

THANKS ONCE AGAIN

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syd 81.300SD.196k
72.300SEL 4.5
mileage.Only god knows!

CHECKED ALL GLOW PLUGS AND WIRING FROM GLOW PLUG RELAY BOX--ALL APPEARS FINE ---BOUGHT TWO NEW FUSES --POPPED ONE IN ---STARTED STRAIGHT UP :D--FUSE WAS PROBABLY 18 YEARS OLD AND MAYBE HAD BEEN WEAKEND IN THE PAST---WILL CARRY SPARE AND SEE HOW IT GOES---once again perfect info --thanks--syd

------------------
syd 81.300SD.196k
72.300SEL 4.5
mileage.Only god knows!