My sd's yellow engine light flashes every so often , started recently.
So what is the problem?
That light comes on when you first try to start the car. Soon as engine going it shuts down, so as the Alternator.

Any advice appreciated.

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You're most likely talking about the brake pad wear indicator. It lights up when you slow down and the brake pads are worn out. It is normal for it to come on when starting the car and go off when it is started. Thats what its supposed to do.

These cars do not have any sort of "engine light" or "check engine' indicator.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Ya I thought of that along the line, getting 2nd opinion doesnt hurt.
Tanks a lot

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Light is on right or left? I think hes talking about GP.

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

yes, it could be the glow plug light too.
they are both yellow.
what icon is on the light? a circle with dots around it, or a curly wire?
John

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

I thought maybe it was the "low coolant" light - that's the one that looks like a check engine light.

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~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

No low coolant sensor on the earlier models, I think that began in 1984 or 1985.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

It sounded like glow plug light to me also, but, surely not.....
Something to remember, if the brake light comes on, it isn't necessarily that the pads are worn. It also is a sign of low fluid, which I was reminded of by the Squash earlier in the week.......
I put up with it flashing occasionally for over a month.
Luckily I snapped-to right before the clutch lost it's prime.

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

watch out jimmy snapping 2 gets harder as we age

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commercial fisherman diesel in my blood in my boats trucks and Dear old Dad has had me drivin them since i got my first license in 1968
1986 300 SDL 427654
1999 Chevy Crew Cab Dually 225423
1986 300 SDL 287000 Dad's
1987 190 Turbo 158000 Mom's (my inheritance)

Heck, I don't get to snap once anymore.......

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

The circle with dots around it.

Is not the glow plug.
Its more with brake, only flash when i tap or using the brakes.

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Check the pads for wear, and check the wires to make sure the casing has not been eroded away. The brake rotor completes the circuit in normal cases or front pad wear.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Agreed, also check fluid level.

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83 SD

84 CD

second on the fluid level

The resevoir is a dual chamber (front / rear) - nice safety design.

I had a real slow leak in my rear caliper and it drained the back chamber and made the light flash under brake and acceleration (as the fluid sloshed).

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~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net

Probably your front pads are worn out, or the brake pad sensor wires are shorting out.

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1985 CA 300D Turbo , 213K mi