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 MANUALSBMW2010X6 ACTIVEHYBRIDREPAIR AND DIAGNOSISBODY & FRAMETOWING SYSTEMSTRAILERS - REPAIRLOADING PLATFORM86 10... TROUBLESHOOTING ON MULTI-TRAILER
2010 BMW X6 ActiveHybrid
86 10... Troubleshooting on multi-trailer
2010 BMW X6 ActiveHybridSECTION 86 10... Troubleshooting on multi-trailer
MULTI-TRAILER TROUBLESHOOTING CHART
| Fault | Cause | Remedy |
|---|---|---|
| Trailer already brakes when foot is taken off accelerator | Shock absorber of overrunning equipment faulty | Replace shock absorber of overrunning equipment |
| Reversing sluggish or not possible | Brake system adjusted too strongly | Adjust brake system |
|
NOTE:
When automatic reversing is activated, there is a residual braking torque caused by the design. This results
|
Brake shoes jammed | Free brake shoes, replace complete brake shoes with brake shoe carrier if necessary |
| in slightly heavier overrunning. | Cables overtensioned | Adjust brake system |
| Handbrake effect too weak | Faulty adjustment | Adjust brake system |
| Faulty spring force accumulator | Adjust spring force accumulator | |
| Brake cables heavily contaminated, corroded or kinked | Free cables, replace if necessary | |
| Wheel brakes overheating | Brake system incorrectly adjusted | Adjust brake system |
| Overrunning equipment is sluggish | Lubricate overrunning equipment | |
| Brake cables heavily contaminated, corroded or kinked | Free cables, replace if necessary | |
| Cables overtensioned | Adjust brake system | |
| Wheel brakes contaminated | Clean wheel brakes | |
| Reversing lever of overrunning equipment jammed | Remove reversing lever, clean and grease with conventional BMW lubricants | |
| Braking effect too weak | Excessive play in brake system | Adjust brake system |
| Brake linings glazed, fouled by oil, damaged or worn | Replace complete brake shoes, clean brake drums, replace if necessary | |
| Overrunning equipment is sluggish | Lubricate overrunning equipment | |
| Brake cables heavily contaminated, corroded or kinked | Free cables, replace if necessary | |
| Jolting braking or starting off | Excessive play in brake system | Adjust brake system |
| Shock absorber of overrunning equipment faulty | Replace shock absorber of overrunning equipment | |
| Brake shoes jammed | Replace complete brake shoes with brake shoe carrier | |
| Brakes squeal or rattle | Wheel brakes contaminated or worn | Clean wheel brakes, replace brake shoes and/or brake drums if necessary |
| Out-of-round or banging brake drum | Replace brake drums | |
| Pad loose | Replace brake shoes | |
| Wheel-bearing play excessive | Replace wheel bearings | |
| Brakes pull to one side | Tire pressure incorrect | Correct tire pressure |
| Brake linings glazed, fouled by oil, damaged or worn | Replace complete brake shoes, clean brake drums, replace if necessary | |
| Suspension shock absorber has no effect | Replace suspension shock absorber | |
| Brake pads worn at angle | Wheel-bearing play excessive | Replace wheel bearings |
| Pads worn to less than minimum thickness | Replace brake shoes | |
| Towing attachment fails to engage after connection | Internal attachment parts contaminated | Clean and lubricate attachment |
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.