Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2001 BMW M3 2D ConvertibleFACTORY OEM SERVICE PROCEDURE
Engine Control - Overview - M3
- Ms S54
- Notes
- Purpose Of The System
- System Components
- Ms S54 ECM
- Power Supply
- Air Management
- Notes
- Principle Of Operation
- Pre-Drive Check
- Post Drive Check
- EDR Safety Concept - Emergency Running Programs
- Stage 1 (Emergency Operation with a Throttle Position Sensor)
- Stage 2 (Emergency Operation Via Idle Air Actuator)
- Stage 3 (Emergency Operation With Open Throttle Valves)
- Stage 4 (Emergency Operation With Internal ECM Fault)
- Emergency Operation Functions
- Workshop Hints
- Tools and Equipment
- Fuel Management
- Ignition Management
- Emissions Management
- Performance Controls
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.