Auxiliary belt replacement: BMW E63, M57; E90, 93 drive (M57D30, M57D30T2, M57D30T2TOP, S65B40A, …)
Step-by-step auxiliary belt replacement for the BMW E63, M57; E90, 93 drive: 13 steps. What to remove, in what order, and what to check after.
Workshop procedure for BMW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: platform codes 3.0D, |, XDRIVE, 30D, 3.0SD, 325D, 330D, XD, 335D, 635D, M3, GTS, 35D
Don't miss
- At removal, mark the direction of rotation; when refitting ensure the drive belt rotates in the same direction
🔧 Engine codes this applies to
📐 99 workshop diagrams for M57D30
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Loosen the tensioner
- Fit the ancillary drive belt
- Remove the fan cowling
- Remove the compressor drive belt
- Loosen the tensioner
- Remove the ancillary drive belt
- Used belt:
- Note: At removal, mark the direction of rotation; when refitting ensure the drive belt rotates in the same direction
- Note: Check that the direction of travel is as marked
- Note: Release the tensioner slowly
- Check that tension is applied to the belt
- Start the engine
- Check the tensioner and/or the belt for correct fitting
Ask TorqFix about your BMW M57D30 — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.
Ask about your BMW M57D30 — free → or sign up free to see the drawingsOther BMW procedures
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.