BMW 325i Check Engine Light Issue Due to Fuel Filler Neck Not Sealing and Ongoing Repairs on BMW 325i

Submitted by OldFed1 · Jun 23, 2025
Published by RepairPal

Problem overview

Some BMW 325i owners report experiencing issues with the check engine light being triggered due to a fuel filler neck not sealing properly, which can lead to difficulties maintaining gas pressure in the tank. This problem is crucial for the vehicle's proper functioning and can result in ongoing repairs if not addressed. Owners have noted that checking the fuel filler neck for dirt and debris is important, as buildup can disrupt gas flow and cause clogs. Additionally, replacing the fuel cap with one that securely clicks into place may help resolve the issue. Ignoring the check engine light related to a faulty fuel filler neck can lead to further complications and more expensive repairs, making prompt resolution essential for maintaining the BMW 325i's performance.

20 people reported this problem
7 comments
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BMW 325i vehicles with this problem

Average mileage: 96,745 miles
(30,000 - 160,000)

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