BMW G26 — repair instructions and wiring diagrams
Original BMW documentation for the G26 body — what is commonly known as BMW TIS: step-by-step repair and maintenance procedures with illustrations, tightening torques and specifications. Navigation follows the vehicle’s assemblies, as in the factory system.
This body series also has wiring diagrams (what is commonly known as BMW WDS): circuit diagrams, connectors and pinouts, component locations.
- Production years
- 2020–2022
- Body types
- coupé
- Documents
- 9,194
- Wiring diagrams
- available
Open the G26 catalogue Search by title
Model variants
Documents apply to a specific variant: after picking the body you specify engine, drive and build date, and irrelevant procedures are filtered out.
- 420d
- 420d xDrive
- 420i
- 430d xDrive
- 430i
- 430i xDrive
- ALPINA B4
- ALPINA D4s
- i4 eDrive35
- i4 eDrive40
- i4 M50
- M440i
- M440i xDrive
Example procedures for the G26
One of the most detailed procedures from each section — so you can see what is actually inside. The full list opens after a free registration.
- replace cylinder head11 Engine
- Replacing the rear side excitation wire (Drive unit removed)12 Engine electrical system
- Completely removing and installing front axle with engine and transmission31 Front axle, front suspension
- Removing and installing/renewing evaporator64 Heating and air conditioning
- Replacing the injection system pressure regulator (after vehicle diagnosis)13 Fuel preparation and control
- Replacing rear axle support (Flat rate unit without wheel alignment)33 Rear axle, rear-wheel drive, guide
- Removing and installing/replacing the exhaust manifold18 Exhaust system
- Removing and installing / replacing coolant feed line for electric drive unit (Draining and topping up coolant, see 17 00 ...)17 Cooling
- Replacing parking lock module (after vehicle diagnosis)27 Transfer box
- Installing exchange transmission (without programming/encoding, see 61 00 ...)24 Automatic transmission
- Replace electrical steering gear (EPS) (Flat rate specification without wheel alignment) (after vehicle diagnosis) (flat rate specification without programming/encoding, see 61 00 ...)32 Steering and Wheel Alignment
- Replacing carrier for dashboard51 Body equipment
- Removing and installing/replacing fuel filler pipe16 Fuel supply
- Removing and installing head-up display62 Instruments
- Removing and installing/replacing high-voltage charging socket, rear61 General vehicle electrical system
- Removing and installing or replacing airbag module on passenger's side72 Body parts and accessories
- Replacing right engine mounting bracket22 Engine and transmission mounting
- Replacing the tailgate41 Body
- Replacing front left or right spring strut (Adaptive chassis and suspension)37 Integrated Suspension Systems
- Replacing grooved ball bearing in propeller shaft centre bearing26 Propeller shaft
- Replacing glass slide/tilt sunroof frame54 Slide/tilt sunroof and soft top
- Removing and installing/replacing seat frame for driver's seat52 Seats and motorcycle seat
- Replacing the hydraulic unit34 Brakes
- Replacing the gaiter71 Parts and accessories for engine and chassis