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#1
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1985 280SL Ignition Failure Cause?
I recently purchased a non running 280SL. Its turned out to be the Coil & Ignition Control Unit were bad. At 1st, only the coil was bad, then after a short test ride, the Ignition Control Unit failed too( luckily just after returning to driveway). I've replaced both parts, after doing a spark test & following tests in the Haynes manual. Voltage at battery while running is at 13 volts. Is there something else probably wrong that I should be checking for, that might burn-up the new Coil & Ignition Control Unit? Or is this just an unusual case? My 280TE still has its original Coil & ICU after 370k miles
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83 280TE- 5 spd, 16.5mm rear sway 85 280SL- 15" Bundts, 5 spd |
#2
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Most likely caused by build-up of excessive resistance in the secondary ignition system.
IN other words. Bad wires cap, rotor, & or coil.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
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