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Thread: Testarossa Hot Start Fix

  1. #1
    spiderscott's Avatar
    spiderscott is offline Hairdresser's Mercedes SLK Club Member
    Join Date
    Oct 2009
    Wokingham Berkshire

    Default Testarossa Hot Start Fix

    I've been experiencing a very embarressing hot start issue with the Ratarossa thats gradually got worse over time. It seems to be quite a common issue with the Testarossa starter system so I did a quick clean up of the solenoid and so far it's been working great.

    Took less than an hour all in and is just the cost of a sheet of fine grade paper and some metal polish.

  2. #2
    Join Date
    Aug 2012
    South west Birmingham


    Nice fix
    Happened all the time on my 328, same or very very similar starter motor to yours.
    Fitted new solenoid and brush box unit less than 15 never had an issue since.
    You can get all the parts still for those old Bosch starter motors, great unit

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