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Thread: WTB LH Module for 1992 500E

  1. #1
    Senior Member maplevalleyhammer's Avatar
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    WTB LH Module for 1992 500E

    I had a very small stumble at idle that was cleared by swapping a friends LH module. Looking to buy someones spare.
    Thanks!
    1992 500E, 2007 Aston Martin Vantage V8 3 pedal, 2002 Ferrari F360 Spider 3 pedal, 2005 SL55 Kleemann 2004 996TT X50 "tuned", 2006 Superformance Cobra, 1999 Land Cruiser, lifted Zombie Apocalypse response

  2. #2
    Member IslandMon's Avatar
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    Re: WTB LH Module for 1992 500E

    Quote Originally Posted by maplevalleyhammer View Post
    I had a very small stumble at idle that was cleared by swapping a friends LH module. Looking to buy someones spare.
    Thanks!
    FYI - I just picked one up on ebay for $150. There were quite a few on there, and even some with 91/92 date code. Popped it in and no issues.
    Check there if none turn up here.


    Sent from my iPhone using Tapatalk
    1992 500E - 215k miles

  3. #3
    .036 Hoonigan™
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    Re: WTB LH Module for 1992 500E

    Quote Originally Posted by maplevalleyhammer View Post
    I had a very small stumble at idle that was cleared by swapping a friends LH module. Looking to buy someones spare.
    Brian, is the relay clicking under the rear passenger seat cushion, when the idle stumble occurs?

    If not, it's a faint possibility the difference between your module and your friend's module is different idle adaptation values. If you have a digital scanner, you can view values on both modules. Also, you could try resetting the adaptation and see if that makes any difference. If your spark plugs aren't gapped to ~1.0mm that's another freebie to try.

    As IslandMon said, you may be able to locate one used at a bargain price. Just make sure it's for a 5.0L engine and the proper part number, and has a decent return policy if DOA. I think I have one left (link) but it isn't cheap, lol...


  4. #4

    Re: WTB LH Module for 1992 500E

    Before you buy one, try swapping yours back.
    It is not uncommon to have a re-seated module clear up little stumbles.
    It is interesting how a bad contact can affect circuit boards and such.
    I had a Sony car head unit in a car that was a fairly new unit.
    It was going haywire. I cleaned the contact with rubbing alcohol, and it was revived.

    Back to the subject at hand.
    As GSXR has mentioned in several posts, the clicking under the rear passenger seat is the sign of a faulty LH Module.

    Another option might be to have your module's capacitors replaced.

    Quote Originally Posted by maplevalleyhammer View Post
    I had a very small stumble at idle that was cleared by swapping a friends LH module. Looking to buy someones spare.
    Thanks!
    Last edited by Stevester 500E; 05-29-2018 at 09:16 PM.

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  6. #5
    Senior Member maplevalleyhammer's Avatar
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    Re: WTB LH Module for 1992 500E

    Thanks!!
    I will try all of these ideas!!
    1992 500E, 2007 Aston Martin Vantage V8 3 pedal, 2002 Ferrari F360 Spider 3 pedal, 2005 SL55 Kleemann 2004 996TT X50 "tuned", 2006 Superformance Cobra, 1999 Land Cruiser, lifted Zombie Apocalypse response

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  8. #6

    Re: WTB LH Module for 1992 500E

    I do have one for sale, if you are interested.

  9. #7
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    Re: WTB LH Module for 1992 500E

    Hi Brian,

    My car had a stumble at idle also. When we replaced the capacitors in the LH module it went away.....

    Hey All,
    There are six Capacitors on the LH Module board, And they are only rated for so many hours of use, when they die the puff up or even leak ....when you replace them it makes sense to replace them all as they are so cheap. The part numbers for suitable replacements are ULD1H220MDD1TD, Aluminum Electrolytic Capacitor - Leaded 50V 22UF 20%, & UHE1H101MPD, Aluminum Electrolytic Capacitor - Leaded 50 volts 100uF 8x11.5 20%, Nichicon is the MFG. and I bought these from Mouser.com 4 (one spare just in case) of each P/N for $3.24 plus $15.00 shipping. My friends Alex & Aaron at MAX RPM Motorsports identified the problem and the capacitors to buy and did the replacement. This stuff is way over my head and it's really good to have technicians that will go the extra mile to help out their customers. Especially with these older cars that have so may NLA parts.

    Cheers,
    Boxersix

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  11. #8
    Senior Member maplevalleyhammer's Avatar
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    Re: WTB LH Module for 1992 500E

    Hi Stevester,
    Thank you for sending the LH Module. I have two, one that works and my old one. Both are from a M.Y. 1992 500E, Bosch PN 0 280 002 512.
    The one that you sent is Bosch PN 0 280 002 526. Is this 100% compatible with my car?
    1992 500E, 2007 Aston Martin Vantage V8 3 pedal, 2002 Ferrari F360 Spider 3 pedal, 2005 SL55 Kleemann 2004 996TT X50 "tuned", 2006 Superformance Cobra, 1999 Land Cruiser, lifted Zombie Apocalypse response

  12. #9
    Senior Member maplevalleyhammer's Avatar
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    Re: WTB LH Module for 1992 500E

    Picture attached
    Attached Images Attached Images
    1992 500E, 2007 Aston Martin Vantage V8 3 pedal, 2002 Ferrari F360 Spider 3 pedal, 2005 SL55 Kleemann 2004 996TT X50 "tuned", 2006 Superformance Cobra, 1999 Land Cruiser, lifted Zombie Apocalypse response

  13. #10

    Re: WTB LH Module for 1992 500E

    Yes, it is 100% compatible-It is a 5.0 LH with WOT module.

    Quote Originally Posted by maplevalleyhammer View Post
    Hi Stevester,
    Thank you for sending the LH Module. I have two, one that works and my old one. Both are from a M.Y. 1992 500E, Bosch PN 0 280 002 512.
    The one that you sent is Bosch PN 0 280 002 526. Is this 100% compatible with my car?

  14. #11
    E500E Guru maw1124's Avatar
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    Re: WTB LH Module for 1992 500E

    Either way, my $.02 says Boxersix is correct. Replace the old Frako capacitors with Nichicons, and drive away. Since you have two, you can have them both rebuilt and have a spare, which is what I did.

    Cheers,

    maw

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  16. #12
    Senior Member maplevalleyhammer's Avatar
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    Re: WTB LH Module for 1992 500E

    Thanks!
    I summoned the courage to plug it in and....100% good!
    1992 500E, 2007 Aston Martin Vantage V8 3 pedal, 2002 Ferrari F360 Spider 3 pedal, 2005 SL55 Kleemann 2004 996TT X50 "tuned", 2006 Superformance Cobra, 1999 Land Cruiser, lifted Zombie Apocalypse response

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    maw1124 (06-08-2018)

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