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 H
2011 BMW 128i Convertible (E88) L6-3.0L (N51)
Signal Names With H
2011 BMW 128i Convertible (E88) L6-3.0L (N51)SECTION Signal Names With H
Signal Names With H
HHS Rear Window Defroster
HKL Signal, Rear-Lid Lights
HLH+ Tweeter, Rear Left +
HLH- Tweeter, Rear Left -
HLV+ Tweeter, Front Left +
HLV- Tweeter, Front Left -
HRH+ Tweeter, Rear Right +
HRH- Tweeter, Rear Right -
HRV+ Tweeter, Front Right +
HRV- Tweeter, Front Right -
HSD_LI Heated Washer Nozzle, Left
HSD_RE Heated Washer Nozzle, Right
HSHL Signal, Ride Level Sensor
HSHL+ Supply, Ride Level Sensor
HSHL- Ground, Ride Level Sensor
HSHR Signal, Ride Level Sensor
HSHR+ Supply, Ride Level Sensor
HSHR- Ground, Ride Level Sensor
HSVL Signal, Ride-Height Sensor, Front Left
HSVL+ Supply, Ride-Height Sensor, Front Left
HSVL- Ground, Ride-Height Sensor, Front Left
HZG_HL Signal, Seat Heating, Rear Left
HZG_HR Signal, Seat Heating, Rear 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.