2015 Volkswagen Golf Sportwagen electrical system problems

“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.”

“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…”

“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.”

“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”

“I smelled a strong odor coming from the heater that turned out to be burnt plastic and wiring associated with the auxiliary heater. This is an obvious fire/ smoke hazard that could have been deadly if other nearby components caught fire.”

“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.”