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  #1  
Old 08-07-2003, 11:11 PM
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Unhappy Help! C280 wont start

My friends 99 C280 sport cranks but wont start.
All dash lights work, but there is no check engine light on.
Fuel tank has plenty.
I don't even know how to check for spark on this modern car. I'm thinking the two things to check are fuel and spark.
One wild guess was fuel pump and when he turns the key to 2 position, there isn't that telltale buzz.
Question, is where is the fuel pump, how long does it buzz in the 2 position and how loud is it?
Thanks for the help, he's stuck right now so any quick response is great.
Is there some simple test we can do out here to check for fuel?
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  #2  
Old 08-07-2003, 11:22 PM
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Try a different key.

Gilly
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  #3  
Old 08-07-2003, 11:28 PM
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I guess that means there isn't anything we can do.
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63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6
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  #4  
Old 08-07-2003, 11:32 PM
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No, I'm serious. The key can go bad which can cause a crank/no start condition.

Gilly
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  #5  
Old 08-07-2003, 11:50 PM
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Thanks Gilly,
I didn't mean to doubt you, I'm a Vintage forum guy.
I don't deal with these newfangled auto mobiles very often.
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63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6
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  #6  
Old 08-07-2003, 11:54 PM
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Try another key first, many failures like this, sounds strange I know.

The fuel pump is under the car, in front of the left rear wheel I believe, there will be a plastic cover under it. You should just barely be able to hear it.
The relay is in the trunk.
Pretty rare failure, the key thing is what comes to mind first, hope he has another one to try.

Gilly
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  #7  
Old 08-08-2003, 12:01 AM
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Join Date: Jun 2003
Location: Martha's Vineyard
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Same thing happened to me 1999 C280 Sport. It was the key. Happened in garge. Went in and got spare electronic key.Car started right up. I always carry all 3 keys (2) smartkeys and my 1 manual flat key when i go on trips or vacation, just in case.
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  #8  
Old 08-08-2003, 06:13 AM
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Quote:
follow Gilly suggestion - he is 100% right all of the time !
You have the uncanny ability of pointing out the obvious, my friend .

(j/k)

Gilly
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