Problem Reports
Mercedes-Benz 420SEL
Report: Replace timing chains/guides every 100,000 miles
Mercedes-Benz 420SEL Problem
Model Years Affected: 1990, 1991
Verified
The timing chain and timing chain guides wear; they should be replaced every 100,000 miles.
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Report #1geeebo, 1990 Mercedes-Benz 420SEL, 198,000 mi
RookieMechanic stated that timing chained slipped and caused severe damage to car engine.
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