BMW | Mini

Powertrain

Engine

• 📎 Poor Performance | Bad Coil | 1991 BMW 325i

• 📝  Poor Performance Under Load | Bad Coil | 2014 Mini Cooper

  • Would run fine in all rpm/speed modes; except when cruising at a higher speed, say 50mph, and then suddenly pressing the accelerator, it would start misfiring. New coil fixed the problem.
  • Why would it misfire only under those conditions? I didn’t bother checking the spark on that cylinder, but generally speaking blue spark is strong and red/yellow spark is weak. Compression, temperature, and high amount of fuel can resist the spark ignition (jumping between electrodes). I think in my case under load computer has been adding more fuel which in turn resisted the spark to the point of dead misfire.

Fuel Trims

• You can’t exactly add the Lambda Control to Additive or Multiplicative because mathematically it won’t add up exactly.
• Global OBDII fuel trim values won’t react the same way as other non-European cars.
• Adaptation Values Explained
  • Additive is LTFT at idle
  • Multiplicative is a LTFT at part load
  • Lambda Control is STFT
• Multiplicative mixture Adaptation (higher rpm)
  • greater than 8% = lean
  • less than 8% = rich
    • The negative multiplicative fuel trim reading of -4.48% means it is rich and subtracting fuel at part throttle.
• Additive Mixture Adaptation (idle, lower rpm)
  • Measurements: ms or mg/stroke
  • greater than 0.2ms = LEAN, adding fuel
  • less than -0.2ms = RICH, subtracting fuel
  • The .68 mg/stroke means it is adding fuel at idle.

Fuel Delivery

• 📎 Intermittent Misfire, P0205, LPG | Bad Injector Emulator Module | BMW X5

📝 Injector Programming | 2010 BMW 335d

• For piezo injectors, the seven digit adjustment value (#1 on pic) must be stored in the DDE after replacement of an injector.
• 

Timing

Valvetronic

• 📚 Valvetronic N55 OEM Manual
• 📎 Valvetronic System Troubleshooting (SearchAutoparts)
• 📎 No Start, 2DE3 & 36FD | Bad DME | 2012 335i (E92) with N55
• Recalibrating Servo Motor
  • Use scantool to recalibrate Valvetronic Limit Stops
• Or try to
  • Remove the servo motor.
  • With a screwdriver push the eccentric shaft gear as far back counter clockwise as it can go.
  • Insert the servo motor and connect its 2 pin plug.
  • Switch the ignition onto position 2 and within 15 seconds depress the accelerator pedal down to full throttle 10 times and you will hear the servo motor program itself back to factory spec.

Turbo

📝 Wastegate Adjustment | 2013 BMW 328i (F30)

• The customer has brought a car with a broken wastegate. DME had the following codes
  • 123401 Electric wastegate, learning limit stop: fault
  • 123431 Electric wastegate, learning limit stop: stop position (wastegate open) outside tolerance
  • 123432 Electric wastegate, learning limit stop: stop position (wastegate closed) outside tolerance
• After replacing the wastegate, codes remained. Needed to perform Wastegate Adjustment procedure.
  • BMW Scanner ➱ Service Functions ➱ Wastegate Adjustment.
  • If wastegate needs a little manual adjustment, the procedure will direct you regarding how far and in which direction it needs to be corrected.
    • 
  • 📎 Wastegate Replacement | BMW F30

Transmission

• How to switch to neutral

  • BMW E70

    • 

• If Transmission Control Module (EGS) or CAS (Immobilizer) are swapped, need to perform ISN matching.
  • Read more in Immobilizer ➱ BMW ➱ Changing ISN in the EGS
• Mini Cooper
  • Requires “Transmission Relearn”

4WD | AWD | Transfer Case | Differential

📎 5463 VTG Mechanism | Bad VTG Motor | E53 | 2006’ X5

• VTG: 5463 VTG mechanism faulty
• 
  • New part  (link)

📎 VTG Codes | 2015 BMW 320xi (F30)

• Had abs, traction, and brake lights on
  • VTG codes
    • 440115 Transfer Box (VTG): calibration angle deviation outside tolerance
    • 44011B Transfer Box (VTG): Torque delivered outside torque characteristic
  • ABS codes
    • 480682 Transfer Box: Fault, clutch position unknown
    • 48097D Transfer Box: Fault, clutch position known, no four wheel drive
    • D36D44 Transfer Box: Signal (longitudinal torque distribution, front axle/rear axle, 19.3.4) invalid, transmitter VTG
• Replaced transfer case. Only traction light remained. No VTG codes. ABS code was same/similar to
  • 48097D Transfer Box: Fault, clutch position known, no four wheel drive
• Reprogrammed/Coded VTG. Codes and light went away.

Chassis

ABS | Traction Control

• On 2006 E90 no programming was required after ABS replacement, just coding and sensors calibrations
• Note on ISTA-P
  • Replaced DSC, launched ISTA-P, didn’t say that control modules were replaced, tried programming, but it kept giving me “replace following modules” window.
  • Then, disconnected DSC, and ran through the same process. Couldn’t select DSC, was grayed out,  so I connected DSC back and let ISTA select it for replacement again.
  • After that it was able to follow through with a measures plan without being stuck on replacing step.

DSC Valves Adjustment

• Service Functions ➱ DSC Valves Adjustment
• Might be needed after different DSC Module has been installed and programmed.
  • Fixes 5DD0 and 5DD2 codes – DSC: Hydraulic unit: adjustment, DSC unit.
• Important. Make sure brake switch is not on, otherwise adjustment will not proceed.

Steering Angle Sensor (LEW, LWS)

• Might need DSC coding before adjustment

📝 5F0E Steering Angle | Bad Yaw Rate Sensor | 2005 BMW X3

• 4×4 light on. ABS Module: 5E0E Steering Angle Sensor: Adjustment.
• Adjustment didn’t help. Sensor worked perfectly though.
• The problem was with DSC/YAW Rate sensor. Needed replacement.
• No need to calibrate it.
• Previously Live Data showed a steady 0 for DSC/Yaw rate sensors.
• After replacement, values were fluctuating close to 0 degrees.

📝 Steering Angle Replacement | 2008 BMW X3 E83

• After replacement car might have these codes
  • LWS ➱ 00000B LWS, Sensor/ vehicle allocation incorrect or not available
  • ABS ➱ 006E3D DSC, LWS (Steering Angle Sensor), internal
• LWS needs both Coding AND Calibration,
  • after which everything starts working and lights turn off.
  • 

📝 SZL Replacement | 2008 X5 E70

• Encoding DSC encodes SZL automatically. There is no separate option to program/encode SZL (from 12/2004).

Power Steering

📎 Used EPS Programming | 2015 BMW 328i

• Dealer said that there is a high chance that they will not be able to program used EPS.
• In this case, Autohex had no problem programming a used EPS.

📎 Active Steering DTC 6136 | Bad Active Steering Module/Short Wiring | BMW 650 (E63)

• 6136 AL: Motor Position Sensor: fault, sensor supply. Active Steering Module was replaced. Had a short of 5V supply (WHT/RED) with ground (WHT/GRN) at right front wheel well harness.

TPMS

• TPMS Info
• F30 TPMS Info
• 📝 481F83 | TMPS Sensor | 2017 BMW X3 (F25)
  • 481F83 wheel electronics, unknown general wheel position
  • One of the TPMS sensors have failed

Body

ECM & Immobilizer Programming

Read more ➱ Immobilizer

Battery | Charging

• 📚 BMW Intelligent Battery Sensor (IBS)

BMW Battery Registration

• BMW Battery Registration Info
• BMW Battery Registration | AGM Battery Info

Power Door Locks | Tailgate | Sliding Doors | Convertible Top

📎 Tailgate Not Working | BMW

• HKL = Trunk Lid Module
• If no codes, try resetting module and initializing trunk lid.
• If replaced, needs to be programmed and coded, even if there are no errors stored.
  • Don’t select “Replaced” in ISTA-P, just “Program” and “Code”.
• Convertible Top | BMW E46
• Convertible Top | BMW E36

Windows, Sunroof

• Power Windows Initialization | BMW E90
  • Press sunroof switch up/in (not forward or backward) for 20 seconds.
• 📎 Windows & Mirrors Inoperative | Wrong Mirror | 2011 BMW 328i 

Sunroof Moonroof Coding Out | BMW E70

• Autohex ➱ FA Manager ➱ Remove $402 Panoramic Glass Sunroof from FA
• Re-enter Coding/Programming menu from main menu (not Programming/Coding Menu) to calculate correct FA.
• Code FZD: Roof function Centre.
  • Sunroof button will stop working. Warning message will disappear.

Wipers

• Rear Wiper Might Not Work if:

  • Tailgate is Open
    • Trunk Open dash light wasn’t on, but scanner showed that it was open.
      • Rear Wiper could be actuated from the Junction Block, but not using wiper switch. (2011 Mini Cooper)
  • There is no change in reset switch (inside wiper motor) signal after 16 seconds of wiper switch operation.