- Om651 timing chain problems. Apr 20, 2017 · The OM651 does have (or can have) a timing chain problem. Note the pile of chain on the right side of the picture. It should really be changed, but it's a pretty big job, as the engine needs to be dropped down with the sub-frame as the tensioner and timing chain are at the rear. Apr 23, 2025 · I’m starting to hear my chain do this, was wondering if I could get away with just replacing chain and tensioner if I leave engine in and find guides are not broken. Using only genuine parts. Feb 10, 2025 · Discover common Mercedes OM651 engine problems, their symptoms, and solutions to maintain performance and reliability. do they suffer any serious problems in large quantities? I’ve heard of the odd timing chain tensioner issue but Is there anything else major with them? Jun 11, 2019 · When to change a Mercedes timing chain is at the first sign of engine chain problems. SAAB used to do this with the old Triumph Dolomite engine which surprised me at the time. Timing Chain Issues The OM651 engine is susceptible to timing chain problems, a condition that necessitates immediate attention to avoid expensive repairs. This is with the tensioner still in. tinxkn lpn fiwx4 o7ff nyq4 eb 0jcl qkqjgd1 kmj7 9e
