Home › Service bulletins › SIB 28 01 14

SIB 28 01 14: Transmission leak

Transmission leak on BMW E82/E88/E89/E90 and other models (2007–2015); the fix is replacing the affected part.

BMW service bulletin · NHTSA ID 10149361 · Oct 2014 · also written SI B28 01 14, B280114

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.

DCT Transmission: Oil Leakage Diagnosis. INFORMATION Incorrect diagnosis of DCT (Double-clutch Transmission) oil leaks may lead to unnecessary part replacements and repeat customer repair visits. When diagnosing complaints related to DCT fluid leaks, please use the attached diagnostic procedure.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 28 01 14
Also written: SI B28 01 14, B280114, 28 01 14, SIB-28-01-14, SI B280114
NHTSA ID10149361
Document IDs filed280114
TypeService bulletin
Date
Models1 Series, 1 Series M, 128i, 135i, 328, 328i, 335, 335i, 335IS, 640i, 650i, M3, M4, M5, M6, Z4
Model years2007–2015
ChassisE82, E88, E89, E90, E92, E93, F06, F10, F12, F13, F30, F31, F34, F80, F82, F83
EnginesN20, N52, N54, N55, N63, S55, S63, S65
Component (NHTSA)Power Train

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

  • SIB 11 03 17 Timing chain warranty extension Timing chain warranty extension on BMW E84/E89/E92/E93 and other models (2011–2018); BMW extended the warranty on this part for eligible cars. Service bulletin · Oct 2021
  • SIB 11 02 08 VANOS reduced power VANOS reduced power on BMW E46/E60/E61/E70 and other models (2006–2015); BMW explains the cause and the approved repair. Service bulletin · Sep 2020
  • SIB 12 17 16 Thermostat warranty extension Thermostat warranty extension on N20/N55 engines (2014–2017); BMW extended the warranty on this part for eligible cars. Service bulletin · Jun 2017
  • SIB 01 05 20 EGR cooler warranty extension EGR cooler warranty extension on B46/B48/B47/B58/N20/N47/N55/N57/N63 engines (2014–2018); BMW extended the warranty on this part for eligible cars. Warranty extension · Aug 2025
  • SIB 01 12 24 Power train warranty extension Power train warranty extension on N55/N63 engines (2012–2015); BMW extended the warranty on this part for eligible cars. Warranty extension · Oct 2024
  • SIB 27 02 20 Lane departure vibration Lane departure vibration on BMW G02/G05/G06/G07 and other models (2016–2025); BMW explains the cause and the approved repair. Service bulletin · Jun 2025

Before you pay: check your VIN for recalls

Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.

Check recalls by VIN →

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.

Want a heads-up when prices or bulletins change for your E82/E88/E89 or other listed model?

About one short email a week, with BMW news. Unsubscribe anytime.