Home › Service bulletins › SIB 61 16 20

SIB 61 16 20: Service action - reworking the high-voltage system connector

Service action - reworking the high-voltage system connector on BMW G20/G21/F30/F34 models (2019–2021); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10179006 · Jul 2020 · also written SI B61 16 20, B611620

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 - REWORKING THE HIGH-VOLTAGE SYSTEM CONNECTOR: The sealing plugs (aka sealing grommets) on the low-voltage connector to the high-voltage battery were incorrectly mounted. The white-colored plugs seal off the individual wire chambers in the connector.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 61 16 20
Also written: SI B61 16 20, B611620, 61 16 20, SIB-61-16-20, SI B611620
NHTSA ID10179006
Document IDs filedB611620
TypeService bulletin
Date
Models330e, 330i, M340i
Model years2019–2021
ChassisG20, G21, F30, F34
EnginesB46/B48, B58
Component (NHTSA)Electrical System
Equipment

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 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 16 24 Telematics unit warranty extension Telematics unit warranty extension on BMW G11/G12/G20/G30 and other models (2018–2020); BMW extended the warranty on this part for eligible cars. Warranty extension · Jan 2025
  • SIB 12 05 25 Electrical system corrosion Electrical system corrosion on BMW G05/G07/G20 models (2024); BMW repairs affected cars free under a service campaign. Service campaign · May 2025
  • NHTSA 10216792 Tec25 Wishbone Return Tec25 Wishbone Return on BMW G11/G12/E60/E89 and other models (2016); BMW explains the cause and the approved repair. Service bulletin · Mar 2016
  • SIB 84 02 26 Telematics unit failure Telematics unit failure on BMW G01/G02/G05/G06 and other models (2020); BMW repairs affected cars free under a service campaign. Service campaign · Jul 2026
  • SIB 72 02 25 Seat warranty extension Seat warranty extension on BMW G01/G02/G20/F30 and other models (2019–2021); BMW extended the warranty on this part for eligible cars. Warranty extension · 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 G20/G21/F30 or other listed model?

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