COMPLETE GUIDE · WORKSHOP RELEASED
E91 workshop identity baseline
BMW 3 Series Touring · E91 LCI · 320i · N43B20 · Any
A novice-friendly process for separating registration data from workshop-critical chassis, engine, transmission, build and VIN evidence before ordering parts or opening a repair guide.
4/4 steps released · 2 linked sources · about 25 minutes.
- Understand what RDW registration data can and cannot prove.
- Capture chassis, engine and transmission evidence without guessing.
- Record production month and VIN privately.
- Know when a procedure is matched versus only relevant.
FASTENERS & TIGHTENING
Check the hardware before you start
No separate verified fastener map is published for this guide. This does not mean no fasteners are involved. Follow the released steps and their cited specifications; if a required tightening or replacement rule is missing, stop and verify it.
How WrenchGuide treats fastener information
Material, reuse policy and tightening method are separate facts. Torque plus angle alone does not establish that a fastener is torque-to-yield or single-use. WrenchGuide will not invent a torque value or replacement rule.
Loading parts and tools…
Loading your workshop…
MY WORKSHOP JOURNAL
Remember how your car came apart.
Attach private notes and your own teardown photos to the exact procedure step. They stay on this device in the current local-first beta.
Capture the registration-level identity
Take a quick photo before disconnecting or removing something you may need to identify during reassembly.