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Old 02-18-2006, 06:19 PM
pure faith
Join Date: Feb 2006
Location: N Portland
Posts: 8
'78 240D won't start

The car ran like a dream until the cold hit. Put a new battery in yesterday, it's cranking slow and just won't start. I was considering draining all the oil out, heating it back up and putting it back in...
Anyone have any ideas or suggestions?

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Old 02-18-2006, 06:27 PM
Registered User
Join Date: Dec 2004
Posts: 554

rim use water to heat the engine, run a garden hose for about a hour,or heat some pots of water on the stove and pour it on top of the engine,have to do ssome cylces but it should start if it ran before the cold.its a good time to recharhe the battery while you are heating it with water.
larry perkins lou ky 86 old cars
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Old 02-18-2006, 06:45 PM
pure faith
Join Date: Feb 2006
Location: N Portland
Posts: 8

Thanks for the tip, I'll try that for sure...
I suspect something larger is amiss though - the car started (it was tough though... took awhile) on Thursday and ran all day. Yesterday we had a cold snap (portland oregon - it was 20-30 all day, REALLY cold for us here!). I wasn't completely astounded that it didn't start then. Today we're back up into the mid-40's, the sun is shining right on the car, I put the new battery in and still I can't get it to turn over quick enough to start. Glow plugs? A bad battery? Some other problem? Don't know. For now I'm going to take the battery off my wife's '78 240D (yeah - we liked the first one so much we got another ) and see if that doesn't help.
Oh, and thanks all of you for being out there - I don't post much but I read the boards all the time and there's always so much good info for me.
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Old 02-18-2006, 06:59 PM
Cabernet red, actually
Join Date: Jan 2006
Location: Willamette Valley, OR
Posts: 503
If it's not a battery problem I'd investigate the GP's.

1985 300D Turbo, CA model
248,650 miles and counting...
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Old 02-18-2006, 07:37 PM
Stevo's Avatar
Registered User
Join Date: Apr 2002
Location: NW WA
Posts: 6,296
Your engine needs to turn 100 RPM to start. maybe you need a new starter, I only get Bosch rebuilts.

1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
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Old 02-19-2006, 02:05 PM
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Join Date: Apr 2005
Location: SW wash
Posts: 143
I would check your glow plug connections I had a early engine in the 240D that I fixed and found that the conections at the plugs had gotten rusty and one was loose .After I took them all apart cleaned and put them back on it started great.

89 Ford F3504x4CC 7.3 IDI turboed Intercooler and running on wvo now powered by a 1997 Cumins
87 300SDL on bio and wvo killed by chevy truck 5-24-06
1999 E300TD black with gray int.
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Old 02-20-2006, 08:48 PM
pure faith
Join Date: Feb 2006
Location: N Portland
Posts: 8
240D won't start

I replaced the glow plugs. No difference. Still turns over slow. Real slow! I replaced battery and it has a full charge. Same thing. I wonder if the starter can go bad without going belly up.
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Old 02-20-2006, 10:18 PM
t walgamuth's Avatar
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 36,298

they can go bad in many ways. slow turning might be one. but also check your grounds from bat to body and from engine to chassis and if that doesnt help run an auxilariy ground from neg to starter bolt with a jumper. if that helps you can put on a permanent aux ground.

it sometimes helps on an older car.

tom w
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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Old 02-20-2006, 11:08 PM
pure faith
Join Date: Feb 2006
Location: N Portland
Posts: 8
240D wont start

Just cleaned all conection. - leads and then bipassed with seprate lead to starter. No dice. Im thinking of taking my starter out of my other 240D and seeing if I get any result.
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Old 02-21-2006, 02:03 AM
Registered User
Join Date: Aug 2002
Location: NE Okla
Posts: 1,104
If the second starter does not do any better than the first, you might look for a starter for a 300D turbo from 82 to 85. They will fit and seem to have more moxie.
1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150
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Old 03-05-2006, 04:41 AM
stcbenz83's Avatar
Mercedes Euro 240D
Join Date: Mar 2006
Location: Louisville, KY
Posts: 1,056
had the same probelm, its the glow plugs and a bad starter. i was suprised at how fast the engine is suppose to turn once i got a new starter. I get duralast, Bosch start the engine slower, and dont have a liftime garuntee and cost a crap load more

1983 Euro 240D 277K
2016 Mazda 6
Coming Soon, 2013 Mercedes E350 Bluetec
2012- Mazda 3
2007 Outlander- complete pile
1995 E300 Diesel 208K
2007 VW Passat 2.0T 63K SOLD
2003 Jaguar X-type 3.0 Sport Sold 04/11 w/88K
2009 Lexus RX350 9061 miles. Sold 04/09
2008 Mitsubishi Lancer GTS:Totaled Sept.,09 @ 24,000
2003 Infiniti I35 58K Sold
1984 300 turbo diesel 222K
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