2021 BMW X1 Air Vent Temperature Difference TSB
A manufacturer communication, NHTSA ID 10204657, addresses a concern where owners of certain 2021 BMW models, including the X1, may feel different air temperatures from the left and right front fresh air grilles. This issue affects the engine and engine cooling system.
Also applies to
- BMW 228i
- 2021
- BMW i3
- 2021
- BMW M235i
- 2021
- BMW X2
- 2021
Symptoms
Owners of certain 2021 BMW vehicles, including the 2021 BMW X1, may notice a discrepancy in the temperature of the air coming from the front fresh air grilles. Specifically, the symptom is described as: "Different air temperatures are felt from left to right out of the front fresh air grilles (air vents)". This can lead to an inconsistent climate experience within the vehicle cabin.
Diagnosis / Trigger Conditions
This issue pertains to the vehicle's engine and engine cooling system, specifically affecting the hard parts internal/mechanical components related to air distribution. The condition is noticeable when the HVAC system is in operation, and a clear temperature difference can be felt between the driver's side and passenger's side front air vents.
Repair Procedure Summary
While the manufacturer communication 10204657 does not detail specific repair steps, it acknowledges the existence of this temperature difference. Typically, addressing such a concern involves a diagnostic procedure at an authorized BMW service center. Technicians would inspect the HVAC system, including blend door actuators, temperature sensors, and air distribution components, to identify the root cause of the uneven temperature output. Repairs would then be performed based on the diagnostic findings.
Owner Action
If you own a 2021 BMW X1, X2, 228i, i3, or M235i and are experiencing different air temperatures from your front air vents, it is recommended to contact your authorized BMW dealership. Inform them about the symptom and mention the 2021 BMW X1 manufacturer_communication, NHTSA ID 10204657. The dealership will be able to diagnose the issue and perform any necessary repairs or adjustments under warranty, if applicable.
Source: NHTSA Manufacturer Communication 10204657
What BMW X1 owners report
Counted from the records in our database across 14 model years.
- 853
- Owner complaints
- 27
- Recalls
- 556
- Service bulletins
- 40
- Crashes reported
- 17
- Fires reported
- 42
- Injuries reported
The 2021 model year
10 complaints, the 12th most of 14 model years on file. Owners reported 4 crashes, 0 fires and 4 injuries for this year, which also has 1 recall on file.
Engine And Engine Cooling, the system this article covers, accounts for 56 of 853 complaints (7%).
Complaints by model year
| 2013 | 102 | |
|---|---|---|
| 2014 | 114 | |
| 2015 | 94 | |
| 2016 | 163 | |
| 2017 | 164 | |
| 2018 | 60 | |
| 2021 | 10 | |
| 2023 | 71 | |
| 2024 | 30 | |
| 2025 | 17 |
Most-reported systems
- Electrical System — 164
- Service Brakes — 136
- Air Bags — 128
- Power Train — 125
- Engine — 106
Latest recalls for the 2021 model year
- 21V554000 — Seat Belts (Jul 2021)
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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