Volkswagen Passat battery drain problems

Filed Jan 19, 2026 · Fuel system · NY

Battery drains overnight. Started with a boost all dashboard warning lights on, vehicle runs fine all day with many starts and stops, battery dies again overnight. Diagnosed with a bad fuel pump control module that continues to run and does not shut off until all battery power is drained. Mechanic changed the fuel pump control module, cleared all fault codes, and vehicle fixed. I saw a Carfax report for an identical 2018, SEL Premium Passat to mine with the exact same issue of a bad fuel control module in that vehicle Carfax report and realized it was a much bigger issue. I am aware of a similar recall for vehicles up till 2016 model year, but this issue is wider for higher model years. Besides the other identical problem listed below in the Carfax report, I am aware of many other fuel pump control module problems reported to online VW forums and online. The identical Passat vehicle information is below: 2018 VOLKSWAGEN PASSAT 2.0T SEL PREMIUM VIN: [XXX] XXX SEDAN 4 DR 2L I4 F DOHC 16V GASOLINE FRONT WHEEL DRIVE 06/27/2025 69,955 mi Piazza Volkswagen Ardmore Ardmore, PennsylvaniaArdmore, PA Ardmore, XXX [XXX] 4.6 / 5.0 88 Verified Reviews 2,091 Vehicle serviced Maintenance inspection completed Fuel pump module replaced Vehicle washed/detailed URL for this vehicle Carfax report is below: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 24, 2022 · Acceleration, Electrical · MO

I was driving this particular day through a busyfour way stoplight intersection around time school was dismissing so 3:30ish PM. And I lost all power to my vehicle with just the battery light flashing once. I barely made it out of the i intersection and to the shoulder of the road as there was no power steering and i had to pump my breaks to stop. I called the local police and let them know it would be towed tomorrow morning. The tow bill was 100 dollars and i had replaced the battery thinking it was the problem. The brand new battery drained in two minutes tops after install alternator was tested and fuses were in working order all except for one that went to my12 volt charging port which was replaced as well as serpentine belt was replaced with alternator test. The battery still drains instantly and when speaking with volkswagon suntrup in sunset hills st. Louis which is the nearest Volkswagen dealership about 30 minute drive my car still is under a dealership warranty for the national emissions recall that was just fixed after i purchased the vehicle. The dealership refuses to come get/ fix/ diagnose or rectify vehicle although admitting to knowing this year has parasitic draws instally killing a brand new battery even while driving was/is a very dangerous situation for me and my family. This car has been sitting in my drive way now for 6 months while nothing is being by vw and i am without safe or working transportation for my family. Ive also been told by vw. That they cant find some parasitic draws and are confused as me!

Filed Aug 30, 2021 · Electrical · CA

The battery died. It's located in the trunk. There was no way to get to the battery because there's no keyhole in the trunk lid and without power nothing works. As in the trunk latch. Once I was able to jump the car bypassing the battery the trunk latch in the driver's side door malfunctioned. Now I can't get into the trunk at all. The latched to let the backseat down are located in the trunk. It's a horrible design and I'm just grateful I was stranded alone somewhere when the trunk latch failed.

Filed Jun 27, 2020 · Fuel system · 71,248 miles · GA

While the vehicle is parked the fuel pump continues to run after turning engine off; the issue disappears if the engine is started then turned off; fan like noise comes from under the right-rear wheel while the fuel pump runs with the engine off; this issue is similar to recall campaign number 17v509000, or vw recall number 20ae; battery drained and then engine was not able to start;

Filed May 6, 2019 · Seats · 56,000 miles · PA · fire

05/01/2019 car had a dead battery---charge over night still would not start---had the car towed to auto shop--upon arrival with key on approx. 15 min drive--smoke started billowing---disconnected battery---drivers side seat warmer completely melted--mechanic says unit pulling 30 amps--there was a previous recall--not sure if totally corrected--donot want to replace immediately--please advise

Filed Nov 1, 2017 · Fuel system · 76,500 miles · PA

Fuel pump control module we contacted volkswagen about the failure of the fuel pump control module and were told that this one is not covered under the federal safety agency recall. The problem: replacing the battery in september 2017 and having a starting problem in mid-october. Took the car to a volkswagen dealer... They ran test to find out the problem, well the battery failed the test so they had to replace but at the same time they told us the fuel pump control module was failing. They stated it was heating up and should be replaced. When I did some background research on a fuel pump module I found recall notices which included 2006-2010 passat wagons which is our car. The recall states," the pump condition also could cause the fuel pump to run continuously, draining the battery and making the car unable to start". This was happening on the month old battery we just had replaced. So I want to find out if this car can be included in the recall because it is a problem that is in keeping with the recall!

Filed Oct 29, 2016 · Electrical, Lights · 61,899 miles · FL

I have been having electrical issues with this car after owning it for 4 years. It started with the tail light bulb always burning out. I have had issues with the windows before and had it replaced. Last year I paid almost $2200 for window which won't roll down and the door which won't lock, water pump, oil leak and other minor issues. The keypad will lock 3 doors only and the lights won't come on when locked but when unlocked it'll come on. I have purchased 3 batteries thus far because the car constantly drains the battery. I've had this car stop in the middle of driving on major streets and almost got rear ended. My passenger right rear door does not lock and window does not work at all.I feel unsafe in this car because I am afraid that some electrical issue might cause my car to catch on fire. The tail light will work if I tap the outside cover to the light. I have gotten pulled over several times because of this and once I show the cop that if I tap it it'll come on, then they understand. At this present moment I can not open the driver side door from the outside and that will cost over $1000 to repair. I purchased my car in august 2009 and I have 62,043 miles on the vehicle. I do not mistreat the car but it's really not worth it and vw does not want to acknowledge that this is a poorly built vehicle. It feels as if this is was a trial an error model car. I am confident that if this car wasn't as old as it is now it would qualify for the lemon law. I am sure that I am not the only vw cc owner experiencing these headaches but if I am at least I am making it known of some of the issues I have encountered while being a first time and last time vw owner.

Filed Nov 10, 2010 · Electrical, Steering · 75,000 miles · TX

My car is 2006 vw passat - 2.0t. Around 60,000miles, car became increasingly harder to start. But it works. And at 75,000miles it looks like the battery died and "steering column lock" is defective. So I talked to the dealership service guy, he told me the battery had low voltage. So I changed, but it happened same problem with new battery. I don't know what happened only my car or other vw also has same problem. I have 73,000 miles, I did it regular maintenance service, after that the car wasn't the same because wheel side had more noise but I trusted dealership. Dealership didn't say anything, so I thought everything was ok. But the same problem happened. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Jun 11, 2009 · Lights · 46,000 miles · MD

Tl*the contact owns a 2006 volkswagen passat. The contact stated that the brake lights illuminated when the vehicle was turned off. She removed all of the fuses, but the brake lights still illuminated. She feels that the failure will drain the battery. The current and failure mileages were 46,000.

Filed Sep 15, 2008 · Body, Brakes · 67,000 miles · NY

Abs module failure at ~67000 miles. Abs light on with flashing brake light and 3 short peeps. Water intrusion from under battery drains due to design flaws.