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 MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 23 (ENGINE CONTROLS - ON-VEHICLE ADJUSTMENTS)IDLE SPEED & MIXTUREACCELERATOR WITH ELECTRONIC ENGINE POWER CONTROL
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
Accelerator With Electronic Engine Power Control
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Accelerator With Electronic Engine Power Control
WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 2001 BMW Z8, 2001 BMW Z3, 2001 BMW X5, 2001 BMW M5, and 2001 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Following adjustment procedure is for Z3 models, but may apply to other models.
- To adjust first idling position, loosen hexagon nut on pedal value sensor. Create.011" (.3 mm) gap between accelerator pedal shaft and idle stop. Tighten hexagon nut on pedal value sensor. Support lever on pedal value sensor while tightening.
- To adjust full load position on manual transmission, actuate accelerator pedal as far as kickdown pressure point in pedal value sensor. In this position, adjust screw to bear on the accelerator pedal and lock it.
- On automatic transmission vehicles, operate accelerator pedal as far as kickdown pressure point in pedal value sensor. In this position, adjust screw to have.19" (5 mm) distance between knurled head screw and accelerator pedal. Lock stop screw.
- After adjusting, check pedal value sensor with BMW service tester or MoDiC. Switch ignition on. Move accelerator pedal to full load stop. Compare actual voltage value with the specified value. Move accelerator pedal to idling stop. Compare actual voltage value with the specified value. Correct adjustment if necessary. See PEDAL VALUE SENSOR VOLTAGE SPECIFICATIONS table.PEDAL VALUE SENSOR VOLTAGE SPECIFICATIONS
Application Specification Idle Speed 45-353 mV Full Throttle Automatic Transmission 3700-3950 mV Manual Transmission 3150-3450 mV
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.