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SIB 24 02 15: Transmission leak

Transmission leak on BMW E84/E89/E90/E92 and other models (2010–2017); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10146786 · Nov 2016 · also written SI B24 02 15, B240215

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.

8HP: TRANSMISSION FLUID LOSS FROM COOLER LINES CONNECTIONS. There is a transmission fluid leak in the area around the oil cooler lines (on the transmission side). CAUSE Damaged O-rings due to unfavorable cooling line connection tolerances

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 24 02 15
Also written: SI B24 02 15, B240215, 24 02 15, SIB-24-02-15, SI B240215
NHTSA ID10058551, 10147714, 10146786 (revisions)
Document IDs filedB240215, SIB-24-02-15
TypeService bulletin
Date (first filed Jun 2015)
Models228i, 3 Series, 320i, 328i, 335i, 428i, 435i, ActiveHybrid 3, M235i, X1 SAV, Z4
Model years2010–2017
ChassisE84, E89, E90, E92, E93, F22, F23, F30, F31, F32, F33, F34, F36
EnginesB46/B48, N20, N52, N54, N55
Component (NHTSA)Engine And Engine Cooling
Power Train
Power Train › Automatic Transmission
Power Train › Manual Transmission

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.

Related bulletins

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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