S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

Need help on engin problem

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Old 03-08-2006, 09:27 PM
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Need help on engin problem

It was cold morning when my 95 s500 started very strange symptom. when ignition turned on engin started rev up and down crazy like you step on accelerater to get quick warm up but much more severe ( 1000 to 5000 rpm) until ASR (accelerator slip regulater) engaged with ASR light is on. Then calm down but idle is still bit higher (800-1100) than normal(600) and drives in limp home mode. After driving awhile until engin gets hot enough then starting is normal with idle is still bit higher.It happening every morning since then. Anyone familier with this please give an advice I will appreciate it. Thank you.

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