2015 Volkswagen Golf Sportwagen electrical problems

Filed Nov 17, 2025 · Electrical · WI

PTC auxiliary heater core connection point failure . It was reported that the wrong type of metal was used for the main electrical connection point for this part causing significant over heating further leading to melting and burning plastic. This then introduces potentially dangerous fumes into the vehicle cabin via the HVAC system. If unaddressed this would likely cause fire damage. The problem has been reproduced by multiple vehicle owners and happens during cold conditions as it supplies heat to the cabin prior to the engine hitting optimal operating temperatures. No warning messages or codes are thrown as a result of this issue. It is a hazard and could cause harm to operators of the vehicles affected.

Filed Dec 30, 2024 · Electrical, Engine · VA

In the last year, my car has experienced multiple instances of the Diesel Particulate Filter (DPF) warning light, check engine light, and a flashing glow plug light on the dashboard. Despite multiple visits and repairs at Sheehy Volkswagen of Springfield, these issues persist, particularly in sub-freezing temperatures. Upon independent inspection of the engine compartment, I found multiple exposed wires, broken wires, and poorly repaired broken wires. The most significant concerns are as follows: Repeated DPF Issues: Over the last three years, the DPF warning and related issues have recurred each winter. Initial attempts to rectify the issue included a DPF regeneration procedure, which temporarily cleared the fault codes but did not address the underlying problem. The DPF was finally replaced in mid-2024, yet the same problems manifested with a brand new component just months later. Extended Repair Time: Sheehy Volkswagen of Springfield had my vehicle for a total of six months (Dec-23 to May-24), during which they were unable to diagnose or fix the problem despite escalating the case to Volkswagen HQ (Business Case Numbers: BT1167682 and BT1177805). This delay is unacceptable. Poor Customer Service: Throughout this period, customer service was unsatisfactory. I was frequently passed between customer service representatives, none of whom were sufficiently informed about the ongoing repairs. Incorrect Diagnosis and Repairs: After replacing the DPF, ECM, temperature sensor, and wiring harnesses, the issue persisted. It was eventually suggested that a wiring problem might be to blame, yet no comprehensive solution was provided. Incompetence and Safety Concerns: Upon retrieving my vehicle, I noticed white smoke emanating from the engine compartment, which I discovered was due to the coolant reservoir being overfilled. Additionally, an independent inspection revealed exposed and poorly repaired wires, posing a serious safety hazard.

Filed Dec 11, 2024 · Electrical · CT

Supplementary auxiliary electric heater ground connector melted and could have caused a fire. Original part #5Q0963235B. A recall (17V-62) for this part was active for various Audi and VW models but for whatever reason my car was not included. Car was brought to Valenti VW on 3/1/24 for inspection after burning smell was emitting from vents. Dealer was unable to locate the source of the problem. Discovered the defective heater myself during fall season when heat was necessary. Please see attached photos. I feel I am entitled to reimbursement for the costs associated with getting this dangerous situation repaired.

Filed Dec 22, 2023 · Electrical · NC

TDI Auxiliary heater (PTC) brown ground wire melting and causing a terrible plastic burning smell inside cabin. Wire likely will cause a fire. Many reports of this happening to other individuals on the Internet forum TDIforum.com

Filed Nov 16, 2023 · Electrical · WV

In 2019, VW issue a recall (37M2) Shift Lever Micro Switch for failing resulting in noncompliant Theft Protection and Rollaway Prevention. The recall was issued for 2015-2019 Golf and 2017-2019 Golf Sportwagen, HOWEVER, in Canada, the recall included 2015-2019 Golf Sportwagen. I have a 2015 Golf Sportwagen (USA) with a failing Shift Lever Micro Switch. There is no different between the Canadian and US Model for this part. I believe that VAG should include 2015 models in the recall.

Filed Mar 12, 2023 · Airbags, Electrical · FL

I backed up my car and upon turning the wheel I heard some crackling from the steering wheel. The airbag and transmission error lights came on and I lost functionality of all the buttons on the steering wheel and the horn. Based on research, this is a clock spring that has been recalled for other model years.

Filed Feb 4, 2023 · Electrical · OR

My vehicle has been smoking inside cab and through vent system. After troubleshooting, discovered the brown ground wire and surrounding plastic of the PTC auxiliary heater has been burning. VW said the have no inventory for replacement parts and no date getting these in. I asked if there was a recall for this issue and they said there was not. Once the issue was located, I discovered a recall for the exact same issue on Audi vehicles. I am fortunate a fire did not ignite next to my leg while driving, however I did breath in a large amount of the smoke as the issue intermittently occured and the issue wasn't easily discovered. I am very frustrated VW would allow a fire hazzard to exist next to foot pedals. This should have been fixed long ago with a recall instead of forcing me and my family to breathe in smoke and risk a much larger fire. There were no warning lights and a dealer has not inspected the issue. However, brown cable housing is burnt/blackened.

Filed Oct 28, 2022 · Electrical · PA

The screen which is for the radio and back up camera has started to "flicker" This looks to be a common problem people are fixing it by having the head unit replaced but clearly it's a safety issue since the backup camera is hard to use. This is a dieselgate car so it wasn't purchased new until 2017 and it seems crazy for this to be happening when the car has only been on the road for 5 years. https://www.youtube.com/watch?v=MgRQp6E16Rc

Filed Sep 20, 2022 · Electrical · NH

-the failed part is available for inspection -fire hazard, shock hazard and toxic fume hazard - Audi has issued a recall for the same part on their vehicles -there were no warning lamps or other symptoms Description of the Issue: The ground terminal on the Auxiliary Heater also sometimes known as the Supplmentary PTC Heater (P/N 5Q0.963.235)began to corrode which caused it to get so hot that the insulation melted, the heater housing melted and live wires became loose in the passenger compartment. The burning plastic also created terrible fumes inside of the car. Here is a picture of a live wire that has melted the housing and come loose. https://forums.tdiclub.com/index.php?media/aux-heater-1-jpg.140387/ Here is the melted housing where the terminal should normally be. https://forums.tdiclub.com/index.php?media/aux-heater-2-jpg.140386/ This seems to be a common issue in these vehicles and is well known to the car enthusiast community. Here are some links to forums posts which document this issue https://forums.tdiclub.com/index.php?threads/burning-smell-from-heat.513304/ https://www.youtube.com/watch?v=dnNW-onPK9M&ab_channel=mr-fix https://www.seatcupra.net/forums/threads/ptc-heater-burning-smell.459372/

Filed Sep 12, 2022 · Electrical · NC

On starting the car the system monitoring safety features shows first a fault detected in the ABS, then the air bag, then tire pressure and sometimes indicates that the key battery should be replaced. It also turns off the idle control that raises the rpm when the brake peddle is released when stopped, and defeats the roll back when stopped on a hill. This started over six months ago and was intermittent, often turning off (no symbols lighted) and idle controls restored after a few minutes. About 5 weeks ago it became constant. In fact, the tire pressures are within the specifications, the key battery is new and measures 3V as expected. The status of the ABS and airbag cannot be checked by the consumer. This problem was reported to the Dealer, Flow Companies of Asheville, who found that the left rear speed sensor was faulty, but did not have the part. Replacement is now scheduled for October 3. This replacement hopefully will restore the monitoring system. My concern is that a monitoring system designed such that a fault in one system triggers false positive warnings in other safety related functions is dangerous. That it also affects the idle controls should not be acceptable. I have reviewed the TDI Forum and Golf Forums and found that this lighting up of multiple faults is not a rare occurrence. A faulty ABS speed sensor is sometimes the cause, other times is seems that moisture is penetrating a connector or cable. In any case a safety monitoring system providing false information should not be tolerated. I also drive a 2003 VW TDI Jetta, it also monitors the air bag, ABS and other systems, but a fault in one does not trigger a cascade of false positives.