At 49,086, our 2016 Volkswagen Golf developed a leak in the thermostat assembly housing. The Volkswagen dealership, Elk Grove Volkswagen in Elk Grove, CA, strongly recommended the replacement of the thermostat assembly housing which included replacement of the thermostat assembly housing, the thermostat itself, a gasket, the replacement of the coolant. Failure to do so would result in the engine overheating and potential damage to the engine. Looking quickly online, I found several forums which discussed this specific problem: https://www.vwvortex.com/threads/thermostat-housing-leaking-again-after-recall-done-in-2018.9458318/ https://www.golfmk7.com/forums/index.php?threads/failed-thermostat-housing-coolant-loss-info-gathering.368847/ A low coolant warning light was on, however there were no visable leaks underneath the car. The following is a ibetter description of the problem, taken from the golfmk7 website: “Coolant will slowly seep out of a weep hole on the underside of the thermostat housing. It doesn't seem to be enough to ever leave a puddle but slight residue may be seen under the thermostat housing and possibly on the oil pan. The loss of coolant often trips the low coolant warning if the level isn't maintained. Depending on the size of the leak, the coolant drop can either be gradual or catastrophic. Loss of coolant has also been linked to the water pump failing. Furthermore, the accessory bracket gasket can leak hot oil down onto the thermostat housing (even after repair) which can cause failure.“ The service was completed today, 02/16/2022.
2016 Volkswagen Golf engine complaints
Page 2 of 2: complaints 11 to 19 of 19, newest first, as owners wrote them.
The thermostat housing and water pump are leaking due to a known manufacturing defect. I had the water pump and thermostat housing replaced around 65,000 miles from an independent Volkswagen mechanic. He informed me that it appears the water pump had been replaced prior to my ownership of the vehicle. (41,000 miles). Again, I have to replace the thermostat housing and water pump, for a leak. The failure causes a leak in the pressurized cooling system. The leak is small while parked so there is no noticeable puddle but as the system warms up, the leak happens faster. Because of this issue, I have had multiple warning messages while driving, low coolant level, check engine light, and EPC (Electronic Power Control, which disables activate cruise control and front collision detection systems). On multiple occasions, I was stranded waiting on help because of the failure. As stated, this is a known issue from the manufacturer, as they have had at least 7 revisions to the part. The manufacturer is currently on revision “M”, I am only aware of revisions “F, G, H, J, K, L” and the current revision “M”. As previously stated, this is the second time I personally have had to pay out of pocket for this repair.
2016 vw golf gti mk7 engine coolant began to slowly leak from thermostat housing seal at 25,000 miles. Dealer replaced housing with rev m part just before my warranty expired. Has this every 25k mile problem been resolved yet?
Tl* the contact owns a 2016 volkswagen golf gti. The contact stated that the check engine warning indicator illuminated intermittently. The vehicle was taken to an independent mechanic who diagnosed that there was a fuel leak. The dealer was not contacted. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 37,000.
Consuming oil
Tl* the contact owns a 2016 volkswagen golf. The contact received notification of the federal safety agency campaign number: 16v647000 (fuel system, engine and engine cooling). The parts to do the repair were unavailable. The contact stated that the vehicle did not receive adequate fuel mileage and that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the issue. The local dealer (ourisman volkswagen of bethesda located at 7001 arlington rd, bethesda, maryland 20814) was contacted and informed the contact that they had not received parts from the manufacturer and that the contact was placed on a waiting list. The manufacturer was making florida and puerto rico a priority first. The contact had not experienced a failure. Parts distribution disconnect.
Engine misfired and cause the car to stutter with loss of performance. This happened to me when making a left hand turn nearly causing an accident because the car was not moving at the normal speed due to loss of performance. This is the 3rd time the engine has misfired since I bought the car. It has less than 2,800 miles on it.
Sudden violent shaking while driving. They replaced all four fuel injectors, second time happened a month later. Shaking while driving. They cannot fix. Miles just under 2000 on second occurrence.
Safety issue - 2016 egolf would not move after a routine traffic stop with "main charging failed" error. During a normal commute after 3, 4 miles of driving 30 - 40 MPH, car wouldn't move after a routine traffic stop right after a traffic light. This is evening 6pm rush hour traffic, car just stopped in the middle of the road. While rest of the systems seem to be functioning, the car ignition is on, pressing accelerator pedal doesn't do anything with "electrical error , stop" message on the dash. After getting stuck in a lane for an hour in rush hour traffic, got the car towed to nearby vw dealer. Dealer informed that the main charging module that charges battery failed, which needs to be replaced with new part form germany. It could take up to two weeks. Safety issue - the fact that car just stops while driving even though the battery has plenty of charge left poses a serious and significant safety risk. A serious accident is just waiting to happen.I was told that the design protects drivers against getting stranded after battery is discharged, since the charging module failed. This seems totally illogical that the design is trying to protect you from stranded when battery runs out, so it rather stop in the middle of the road to get the module fixed before you can drive it to a safe place. There are quite a few incidents reported like this, so vw has a serious safety issue to fix on 2016 egolf immediately. Maybe it requires a design fix to let drivers drive to a dealer to get the faulty part to be fixed, instead of stranding in the middle of the road.
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