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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 20, 2026
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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2020 BMW M550i xDrive 4.4L MIL Lamp on VIN: WBAJS7C04L
Confirmed that the in-tank fuel pump was noisy. The fuel tank was full. This should have been a gravy job; this vehicle did not need a repair cable set. I am not sure if we have very bad luck or if my least experienced technician made a mistake. He used IS... Trouble codes: 10021, 10021
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Fixes & Summaries for European
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2019 Volkswagen Tiguan SE 2.0L Auto start/stop VIN: 3VV2B7AX9K
Performed voltage drop tests on the battery and alternator cables. All were good. Customer had the battery tested and supposedly it was fine. I tested the battery with a load tester and it tested weak. Installed a known good battery and it started working as i... Trouble codes: U3501 (P30de-), P30DE, U1400.
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