2021 BMW Coolant Pump Pulley Fracture Issue
A manufacturer communication from BMW addresses a potential issue where the belt pulley on the mechanical coolant pump may fracture, leading to engine drive belt detachment in various 2021 BMW models.
Si applica anche a
- BMW 330e
- 2021
- BMW 330i
- 2021
- BMW 430i
- 2021
- BMW 530e
- 2021
- BMW 530i
- 2021
- BMW 540i
- 2021
- BMW M340i
- 2021
- BMW M440i
- 2021
- BMW M550i
- 2021
- BMW X6
- 2021
- BMW X7
- 2021
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Why This Matters
This manufacturer communication highlights a potential issue with the BMW coolant pump fracture in various 2021 BMW models. A fractured belt pulley on the mechanical coolant pump can lead to the engine drive belt coming off. This detachment can impact critical engine functions, as the belt drives both the coolant pump and the alternator.
What's Happening
BMW has identified that the belt pulley on the mechanical coolant pump may fracture. When this occurs, the engine drive belt can become dislodged from both the coolant pump and the alternator. The coolant pump is vital for regulating engine temperature, while the alternator is responsible for generating electrical power for the vehicle's systems and recharging the battery.
Potential Symptoms
Owners of affected 2021 BMW vehicles might notice several symptoms if the belt pulley fractures and the drive belt detaches. These could include:
- Warning lights on the dashboard related to the charging system or engine temperature.
- Engine overheating, as the coolant pump would no longer circulate coolant effectively.
- Loss of electrical power or a dead battery, due to the alternator not functioning.
- Unusual noises from the engine bay, such as squealing or flapping, if the belt is loose or detached.
- A noticeable change in engine performance or the vehicle entering a "limp mode."
What Owners Should Do
This information comes from a manufacturer communication, not a recall notice. If you own a 2021 BMW X5 or another affected 2021 BMW model and experience any of the symptoms related to a BMW coolant pump fracture, it is recommended to contact your authorized BMW dealership. They can diagnose the issue and determine if your vehicle is affected by this specific condition. Early diagnosis can prevent further damage to your engine or electrical system.
Source: NHTSA Manufacturer Communication 10208176
Frequently Asked Questions
- What is the 2021 BMW coolant pump fracture issue?
- The issue involves the belt pulley on the mechanical coolant pump in certain 2021 BMW models potentially fracturing. This can cause the engine drive belt to detach from the coolant pump and alternator, impacting engine cooling and electrical power generation.
- Which BMW models are affected by the coolant pump pulley fracture?
- This issue affects various 2021 BMW models, including the X5, 330i, M340i, X7, M550i, 530i, 330e, 530e, 540i, 430i, X6, and M440i.
- What are the signs of a fractured coolant pump pulley in my BMW?
- Symptoms may include dashboard warning lights for charging or engine temperature, engine overheating, loss of electrical power, a dead battery, unusual noises from the engine, or a change in engine performance due to the BMW coolant pump fracture.
- Is this a recall for my 2021 BMW?
- No, this is a manufacturer communication (NHTSA ID 10208176), not a recall. It informs dealerships about a potential issue. If you experience symptoms, contact your BMW dealer for diagnosis.
What BMW X5 owners report
Counted from the records in our database across 27 model years.
- 3,423
- Owner complaints
- 114
- Recalls
- 1,651
- Service bulletins
- 120
- Crashes reported
- 159
- Fires reported
- 132
- Injuries reported
The 2021 model year
112 complaints, the 14th most of 27 model years on file. Owners reported 10 crashes, 3 fires and 7 injuries for this year, which also has 12 recalls on file.
Fuel System and Gasoline and Engine And Engine Cooling, the system this article covers, accounts for 328 of 3,423 complaints (10%), including 7 for 2021.
Complaints by model year
| 2001 | 160 | |
|---|---|---|
| 2006 | 195 | |
| 2008 | 235 | |
| 2009 | 157 | |
| 2011 | 331 | |
| 2012 | 295 | |
| 2013 | 162 | |
| 2015 | 152 | |
| 2019 | 194 | |
| 2021 | 112 |
Most-reported systems
- Engine — 749
- Air Bags — 663
- Electrical System — 587
- Power Train — 475
- Fuel/Propulsion System — 335
Latest recalls for the 2021 model year
- 22V267000 — Visibility (Apr 2022)
- 21V156000 — Seats (Mar 2021)
- 21V096000 — Back Over Prevention (Feb 2021)
Recent owner reports about fuel system and gasoline and engine and engine cooling
The contact owns a 2021 BMW X5. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available.
Read owner complaints →The contact owns a 2021 BMW X5. The contact stated that while driving at an undisclosed speed, the coolant warning light illuminated with the message "Coolant Dangerously Low - Fill Right Away" displayed on the instrument panel.
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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BMW Service Information Bulletin SIB 11 05 21 addresses a potential issue where the mechanical coolant pump pulley may fracture, causing the engine drive belt to detach in certain 2021 BMW X-series, 3 Series, 4 Series, and 5 Series vehicles.
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