Thread: High Idle speed
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Old 03-07-2001, 07:03 AM
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ymsin ymsin is offline
Driver, Mercedes-Benz
Join Date: Feb 2001
Location: Malaysia
Posts: 1,645
This may be of help:

From -


The engines are known for their durability. If an engine is properly maintained, it can easily run for 300.000 - 400.000 kilometers without a rebuild. The V8 engines are alloy engines and the walls of the cylinder housings are coated with a silicium-based layer. Expect to change a distribution chain every 250.000 kilometers. The early Bosch K-jetronic continuous fuel injection systems can develop a rough idle over time. Typically, a V8 should run about 650 - 700 rpm at idle when hot. If the car will develop a jumpy idle (jumping from about 1500 rpm to 500 and up again), the electronic control module is likely to be at fault. Post-1985 models were equipped with Bosch KE-jetronic pulsed fuel injection systems with a completely electronic engine management system. "

Hope this will help you.

... Kerry

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