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SIB 64 08 21: EGR valve service information

EGR valve service information on BMW G05/G06/G07/G11 and other models (2008–2023); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10239614 · Jun 2023 · also written SI B64 08 21, B640821

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.

The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 64 08 21
Also written: SI B64 08 21, B640821, 64 08 21, SIB-64-08-21, SI B640821
NHTSA ID10204659, 10218379, 10239614 (revisions)
Document IDs filedB640821, SIB640821
TypeService bulletin
Date (first filed Sep 2021)
Models530e, 530i, 540d, 540i, 640i, 740e, 740i, 740LI, 745e, 840i, X5, X6, X7
Model years2008–2023
ChassisG05, G06, G07, G11, G12, G14, G15, G16, G30, G31, G32, F06, F12, F13, E71, F16
EnginesB46/B48, B57, B58, N54, N55, N57, N63
Component (NHTSA)Electrical System
Visibility › Defroster/Defogger/Hvac System

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

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  • SIB 11 02 08 VANOS reduced power VANOS reduced power on BMW E60/E61/E70/E71 and other models (2007–2015); BMW explains the cause and the approved repair. Service bulletin · Sep 2020
  • SIB 17 03 20 Coolant line leak Coolant line leak on BMW G01/G02/G05/G07 and other models (2018–2020); BMW gives an inspection and repair procedure. Service bulletin · May 2020
  • SIB 11 11 18 VANOS replacement VANOS replacement on B46/B48/B58 engines (2016–2017); the fix is replacing the affected part. Service bulletin · Jan 2019
  • SIB 12 06 26 Fault codes software update Fault codes software update on BMW G05/G06 models (2023–2026); BMW released a software update. Service campaign · Jun 2026
  • SIB 16 01 24 Engine no-start Engine no-start on BMW G05/G06/G07/G60 and other models (2023–2025); BMW repairs affected cars free under a service campaign. Service campaign · Nov 2025

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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.