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U0104BMWBMW X7 HubAll BMW U0104Low Severity

U0104 on BMW X7

Lost Communication with Cruise Control Module

Factory diagnostic protocol and troubleshooting wire for fault code U0104 specifically for the BMW X7 (2020–2026, 3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP)).

Verified OEM Telemetry & Field Repair Tree
BMW X72020–2026
BMW X7
SUV3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
X7 SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
Low urgency level
Est. Repair Cost
$100 - $450 (DIY: $0 - $150)
Parts & Labor DIY
Check U0104 On Another BMW Model:
Diagnose U0104 on Specific X7 Model Year:

1. Symptoms of U0104 on BMW X7

When the Engine Control Module (ECM/PCM) on your BMW X7 (3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP)) logs fault code U0104, drivers commonly observe:

Adaptive Cruise Control (ACC) disabled on BMW X7 (3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP))
Pre-Collision System warning light on on BMW X7 (3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP))
Check Engine Light on on BMW X7 (3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP))
BMW X7 OBD-II Port Location
The 16-pin diagnostic connector is located Lower left driver dash kick panel. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on BMW X7

Historical warranty claims and technical repair bulletins for BMW X7 point to the following failure distribution:

55%
Blocked or dirty front radar sensor in grille/bumper (BMW OEM Part)
25%
Blown radar module fuse (BMW OEM Part)
12%
Faulty radar cruise control module (BMW OEM Part)
8%
Misaligned radar sensor following minor bumper bump (BMW OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for BMW X7.

3. Step-by-Step DIY Repair Guide for BMW X7

01
Clean Front Radar Sensor in Grille

Clean snow, ice, mud, or dead bugs off front radar emblem. on the BMW X7 equipped with 3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP).

Required Tool: Microfiber Towel
02
Check ACC / Radar Fuse

Verify power feed to radar sensor. on the BMW X7 equipped with 3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP).

Required Tool: Test Light
03
Perform Radar Aiming Calibration

Execute optical/radar alignment procedure if bumper was removed. on the BMW X7 equipped with 3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP).

Required Tool: Calibration Target, Scan Tool
04
Clear Trouble Codes

Clear DTCs and test cruise on highway. on the BMW X7 equipped with 3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing BMW X7 (U0104)

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Direct-Fit Replacement Part

BMW X7 OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for BMW X7.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on BMW X7

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the BMW X7:

4. BMW X7 U0104 FAQs

What causes code U0104 to trigger on a BMW X7?

On the BMW X7 (3.0L Turbo I6 (B58) / 4.4L Twin-Turbo V8 (S68 M60i 523HP)), U0104 is most frequently caused by Blocked or dirty front radar sensor in grille/bumper or Blown radar module fuse.

Where is the OBD-II port located on my BMW X7?

On the BMW X7, the 16-pin DLC diagnostic connector is located Lower left driver dash kick panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my BMW X7 with code U0104?

Yes. Normal driving is unaffected, but Adaptive Cruise Control will not engage. Given that U0104 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.