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SIB 11 17 14: Coolant line leak

Coolant line leak on S63 engines (2013–2015); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10148164 · Dec 2014 · also written SI B11 17 14, B111714

What it covers

A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.

Service Action: Retrofit Heat Insulators to Turbocharger Coolant Lines. There is a possible coolant leak at the exhaust turbochargers. CAUSE Excessive heat buildup in the area of the turbocharger coolant lines.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 11 17 14
Also written: SI B11 17 14, B111714, 11 17 14, SIB-11-17-14, SI B111714
NHTSA ID10148164
Document IDs filed111714
TypeService bulletin
Date
ModelsM5, M6
Model years2013–2015
ChassisF06, F10, F12, F13
EnginesS63
Component (NHTSA)Engine And Engine Cooling

Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.

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Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.

Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.

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