2021-2022 BMW Coolant Pump Pulley Fracture Issue
A manufacturer communication from BMW, NHTSA ID 10212784, addresses a potential issue where the belt pulley on the mechanical coolant pump may fracture. This can lead to the engine drive belt detaching from the coolant pump and alternator, affecting various 2021-2022 BMW models.

Also applies to
- BMW 330e
- 2021–2022
- BMW 330i
- 2021–2022
- BMW 430i
- 2021–2022
- BMW 530e
- 2021
- BMW 530i
- 2021–2022
- BMW 540i
- 2021
- BMW M3
- 2022
- BMW M340i
- 2021
- BMW M440i
- 2021–2022
- BMW M5
- 2022
- BMW M550i
- 2021
- BMW R 1250 RT
- 2022
- BMW X5
- 2021
- BMW X6
- 2021–2022
- BMW X7
- 2021–2022
▸ Show 9 more▾ Show fewer
Symptoms of a Coolant Pump Pulley Fracture
Owners of affected 2021-2022 BMW vehicles might experience symptoms related to a fractured belt pulley on the mechanical coolant pump. The primary concern is the potential for the engine drive belt to detach. If the belt comes off, it would affect the operation of both the coolant pump and the alternator.
Potential Consequences
When the engine drive belt detaches due to a fractured belt pulley, several critical systems can be impacted. The mechanical coolant pump would cease to function, potentially leading to engine overheating. Additionally, the alternator would stop charging the vehicle's battery, which could result in a loss of electrical power and eventually cause the vehicle to stall.
Affected Components
This issue specifically involves the belt pulley of the mechanical coolant pump, the engine drive belt, and the alternator. The manufacturer communication, NHTSA ID 10212784, highlights these components within the ENGINE AND ENGINE COOLING and FUEL SYSTEM, GASOLINE categories. The potential for a fractured belt pulley is a significant mechanical concern.
What Owners Should Do
If you own a 2021-2022 BMW model and suspect an issue with your coolant pump or engine drive belt, it is recommended to contact your authorized BMW dealer. While this document is a manufacturer communication and not a recall, it addresses a potential defect that could impact vehicle operation. Owners concerned about the 2022 BMW X5 manufacturer_communication should inquire about any relevant service actions or inspections.
Repair Procedure Summary
The manufacturer communication describes the potential for the belt pulley on the mechanical coolant pump to fracture. This condition can lead to the engine drive belt becoming dislodged from the coolant pump and alternator. Owners experiencing issues related to engine cooling or charging system warnings should have their vehicle inspected by a qualified technician to determine if this specific problem is present. Any necessary repairs would involve replacing the affected components.
Important Warnings
BMW is not explicitly notifying consumers about this specific manufacturer communication. Owners should be proactive in checking for any symptoms or contacting their dealer if they have concerns about the 2022 BMW X5 manufacturer_communication or similar models. Early detection of a fractured belt pulley can prevent more severe engine damage or vehicle breakdown.
Source: NHTSA Manufacturer Communication 10212784
Frequently Asked Questions
- What is NHTSA Manufacturer Communication 10212784 about?
- NHTSA Manufacturer Communication 10212784 details a potential issue where the belt pulley on the mechanical coolant pump in certain 2021-2022 BMW vehicles may fracture, causing the engine drive belt to detach.
- Which BMW models are affected by the coolant pump pulley fracture?
- This issue affects various 2021-2022 BMW models, including the X5, X7, 330i, M3, X6, 530i, 330e, M5, 430i, R 1250 RT, M440i, M550i, M340i, 540i, and 530e.
- What are the potential consequences if the belt pulley fractures?
- If the belt pulley fractures, the engine drive belt can come off the mechanical coolant pump and alternator. This could lead to engine overheating due to loss of coolant circulation and a loss of electrical power as the battery would no longer be charged.
- Will BMW notify owners about this manufacturer communication?
- The document does not indicate that BMW is notifying consumers about this specific manufacturer communication. Owners should be aware of the potential issue and contact their dealer if they experience related symptoms or have concerns about the 2022 BMW X5 manufacturer_communication.
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 2022 model year
75 complaints, the 19th most of 27 model years on file. Owners reported 9 crashes, 1 fire and 3 injuries for this year, which also has 1 recall on file.
Engine And Engine Cooling and Fuel System and Gasoline, the system this article covers, accounts for 328 of 3,423 complaints (10%), including 3 for 2022.
Complaints by model year
| 2001 | 160 | |
|---|---|---|
| 2006 | 195 | |
| 2008 | 235 | |
| 2009 | 157 | |
| 2011 | 331 | |
| 2012 | 295 | |
| 2013 | 162 | |
| 2015 | 152 | |
| 2019 | 194 | |
| 2022 | 75 |
Most-reported systems
- Engine — 749
- Air Bags — 663
- Electrical System — 587
- Power Train — 475
- Fuel/Propulsion System — 335
Latest recalls for the 2022 model year
- 22V267000 — Visibility (Apr 2022)
Recent owner reports about engine and engine cooling and fuel system and gasoline
The contact owns a 2022 BMW X5. The contact stated that the vehicle was taken to the dealer for routine service. The contact stated that during the inspection of the vehicle, the dealer discovered that the water pump was beginning to leak coolant onto…
Read owner complaints →The contact owns a 2022 BMW X5. The contact stated that while the vehicle was at the dealer for a scheduled service appointment, the contact was informed that the coolant pump was failing. The contact was informed that the coolant pump needed to be replaced.
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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