S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

Just bought a 500sel from auction! 2 problems, please help?

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Old Jun 5, 2010 | 03:07 PM
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decalservice's Avatar
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300e
Just bought a 500sel from auction! 2 problems, please help?

Hello folks, I just bought an 86 500sel from the auction today, benefiting goodwill.

The car is gorgeous and like brand new inside and out, but I noticed that the interior panel for covering the Jetronic computer was off. I suspected computer issues, but not 100% sure I confirmed it, when I start the car, she runs for about 20 seconds, and then dies. I have to let her sit for a while or disconnect and reconnect the battery for her to start again.

Is this more than likely the computer box? I was thinking maybe the previous owner THOUGHT it was, and when he found out it isnt, decided to donate?
The car starts up WITHOUT the computer box installed, if there is starting fluid in the intake.

Also, the brakes are stuck. This car has been sitting since 2006. The brake pedal is hard, and will stop the car only if you push REALLY hard. Any possible culprits?

Thanks guys! Glad to be back on these forums with another Mercedes, it's been a while!
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Old Jun 10, 2010 | 09:23 PM
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1991 420SEL & 300E, 2003 BMW X5, 2001 740iL all on DUBS
i sugest u let a professional look at there might be more problems that u think lol when a car sits for that long things seize up (brakes, cylinders, etc) but thats just my opinion
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