22/10/2026
π§ BMW F30 320d | Timing Chain & Oil Leak Repair
This 320d came in with a noisy timing chain and excessive oil leaks. Hereβs what we found and fixed:
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Timing chains replaced with a genuine BMW chain kit
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Oil leaks traced to the rocker cover breather unit and oil filter housing gaskets, so we fitted a new rocker cover and new oil filter housing gaskets
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While in there, we found the DPF flexi had completely collapsed. We removed it and welded in a new flexi
A noisy chain is never one to ignore. Catching it early can save you from a far bigger bill. If your 3 Series is rattling on start-up or leaving oil on the drive, get it checked before it gets worse
Did you know? π€
You can have your BMW or MINI serviced with us β even while itβs still under manufacturerβs warranty β without affecting your cover.
We use official dealer diagnostic tools and systems, so every service is logged as a genuine entry on the BMW Group database. Same standards, same systems main dealers use, just better value.
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Warranty-safe
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Genuine digital service history
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Official dealer-level equipment
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Better value than main dealer pricing
β’ Diagnose β’ Repair β’ Performance
β¨ For Enquiries β¨
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π Website: www.Junction1BM.co.uk
π§ Email: [email protected]
π Call/Text: 07540297200