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Old 01-28-2003, 11:13 AM
Registered User
Join Date: Jan 2003
Posts: 236
91 560SEL hard starting

I experienced a rather unusual hard start yesterday. I parked , went inside a store for about 10 minutes, went back to my car, started it, and it will not start. I tried probably 10 times and will not start ( it cranked a couple of times but dies). I stopped for a couple of minutes, started it and it started normally. As far as I can remember, I probably experience the same thing once about 2 months ago...

Is there anything that i should check for? I just do not want the chance for this to get any worse...

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Old 01-28-2003, 04:22 PM
Posts: n/a
The OVP is a good place to start. Basically a big fuse -- This was happening to me in extremely cold weather. It would take 6-12 cranks to turn it over.

Try a search with OVP and 560 or some such query, tons of stuff out there. Easy to replace yourself as well.

Try this link (a search of OVP and 560)
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Old 01-28-2003, 04:50 PM
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Join Date: Jan 2003
Posts: 236
thx for the response. I know i came accross this OVP once before, but can you pinpoint exactly where the OVP is on a 91 560SEL?

thx again
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Old 01-28-2003, 05:18 PM
Posts: n/a
i do believe that the ovp is in the fuse box. it is a silver relay with a red (maybe) fuse on top. its about the size of an ice cube. hope that the do u like ur 560? im thinking of buying a 91 560.

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Old 01-28-2003, 06:35 PM
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Join Date: Sep 2002
Location: Kingsport, TN
Posts: 375
Hi emmydotnet,
in an 87 420, the OVP has a red head with a fuse on top and sits close to the firewall as you can see on this picture.
I assume it looks the same on a 560.
Reinhard Kreutzer
Attached Thumbnails
91 560SEL hard starting-ovp-fuel-relay.jpg  
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Old 01-29-2003, 12:45 AM
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Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
Looks the same as my 560.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon least its a diesel

Non illegitemae carborundum.
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Old 01-29-2003, 01:38 AM
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Join Date: Jan 2003
Posts: 236
thank you all for your responses. I will check it out. I will probably try the resoldering...

I am happy with my 91 560SEL. This is the last model year of this body style, and hope it will last for many many more miles. currently i have 145,000 miles on it.
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