2015 335i timing chain

[seelztlb]

Hey guys,

Last week I bought an estoril blue 335i M-Sport 6spd with 86k miles
at an auction for $10k. It has a salvage title and was a drug seizure, so I knew I was getting into something that might have some issues, but felt the price was right.

Car was idling rough and definitely under powered. Ran the codes and it came back with a misfire on all cylinders, mass air flow sensor and a cam sensor. Replaced both sensors, new plugs and coils and changed the oil.

Found metal shavings in the oil so my mechanic thinks the timing chain is bad. Talked to several import shops around here and none of them want anything to do with it. One shop said over the phone they’d do it for $1500 in labor + parts, but I’m skeptical based on the numbers I’ve seen elsewhere.

Any thoughts or guidance would be greatly appreciated.


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[328 Power 04]

I'm not sure if I would go all in to a timing chain replacement without some proof though.

[Skrimshaw]

Some metal shavings are COMPLETELY normal, I've done thousands of oil changes and some perfectly good engines have tons of flakes up at the oil filter sitting in the bottom of the housing. After doing the repairs what faults came back, also is there any chance of having it scanned using ISTA as the exact faults are much more helpful for diagnosis. As a final note, with timing issues you WILL have timing faults, only when doing the cam phaser bolt repair on the N54 and the tech setting the timing a single tooth off have I seen misfires without timing faults, but that engine barely ran.