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.
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HOMESERVICE MANUALSBMW2011128I CONVERTIBLE (E88) L6-3.0L (N51)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULEDIAGRAMSDIAGRAM INFORMATION AND INSTRUCTIONSSIGNAL GLOSSARYSIGNAL NAMES WITH Q
2011 BMW 128i Convertible (E88) L6-3.0L (N51)
Signal Names With Q
2011 BMW 128i Convertible (E88) L6-3.0L (N51)SECTION Signal Names With Q
Signal Names With Q
Q11L Motor, Heading Beam Height Control, Left
Q11R Motor, Heading Beam Height Control, Right
Q12L Motor, Heading Beam Height Control, Left
Q12R Motor, Heading Beam Height Control, Right
Q21L Motor, Heading Beam Height Control, Left
Q21R Motor, Heading Beam Height Control, Right
Q22L Motor, Heading Beam Height Control, Left
Q22R Motor, Heading Beam Height Control, Right
RENDER: 1.0x
NO RELATED
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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.