10.0

really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
26,399 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 Volkswagen Passat engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2015 Volkswagen Passat:

Unsubscribe any time. We don't sell/share your email.

2015 Volkswagen Passat Owner Comments (Page 1 of 3)

problem #46

Sep 182023

Passat

  • miles

A D V E R T I S E M E N T S

After having the government approved and MANDATED Phase 1 and 2 Dieselgate fixes performed on my VW Passat TDI it has randomly lost power and or stalled while at highway speeds at least 6 times. The last time my 16 year old son was left stranded in the middle of a busy four lane highway narrowly avoiding being hit and seriously injured and/or killed. Apparently there are thousands of these cases (a class action lawsuit filed in 2018) on the road. Why haven't I been notified? This mandatory fix is much more dangerous then the original issue it seeks to address. From what I understand, the fix is causing the DPF regeneration sequence to occur much more often and much hotter, thereby cooking/melting/boiling the entire cooling system and shutting the engine down without warning. My vehicle has been in the service dept of VW for over 6 months (this last time) because they cannot figure how to fix it permanently. VW Corporate is very aware of the situation and has fed me a bunch of bullshit not even a child would believe and has refused my suggestion to self report the problems to NTHSA and CARB. If the cars are not taken off the road this issue will definitely (if not already) result in major injuries and likely death. I have done my duty notifying this government agency and now if a tragedy occurs there will have been actual notice as required by the law.

- Paso Robles, CA, USA

problem #45

Sep 192019

Passat

  • miles
While driving the EPC light came on and the car stopped driving. Vehicle was towed to local VW dealership, a FULL engine rebuild took place and a faulty intake valve spring was found, after replacing the injectors and seal kits. Then to replace the faulty electronic ignition switch. Over $3k in repairs for faulty parts. It was a safety risk because the vehicle stopped working in the middle of driving, in traffic with no other indication that something was wrong prior on a major road in the city. Since then, the vehicle has had constant issues with oil being low even after an oil change, no leaks were detected or reported. Also, the airbags and clockspring was supposed to be replaced. My airbag light came on in 3/2023 and it sounds like the clock spring is broken. Horn and electronics do not work from the steering column.

- Plant City, FM, USA

problem #44

Mar 202023

Passat

  • miles
I have no heat on the passenger side of the vehicle from any of the vents. The windshield would ice up due to this. The drivers side works fine. This car does not have Climatronic. It has manual controls. I have been told the heater core is clogging by my mechanic. This is a 2015. VW extended the warranty for 2012-14 Passat TDI's with the CKRA engine however this is a 2015 with the CVCA TDI engine. Is there any extended coverage for this generation engine? I don't want this to develop into a larger issue with deficient EGR cooling problems. The heater core in the 2015 is the same part number used in previous model years which are covered by the recall.

- Durham, NH, USA

problem #43

Feb 192023

Passat

  • miles

A D V E R T I S E M E N T S

Engine cylinder number one piston broke while driving. Vehicle has only 91,000 miles on it and now entire engine needs replacing. Ironically, it was taken to a VW dealership only a few weeks ago for normal servicing, and no problems detected.

- Burke, VA, USA

problem #42

Jan 172023

Passat

  • 113,000 miles
The contact owns a 2015 Volkswagen Passat. The contact stated that while driving approximately 75 MPH with the cruise control engaged, the defroster failed and became inoperable. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed that the heater core needed to be replaced. The vehicle was not repaired. There was a previous coolant flush and timing belt replacement at approximately 80,000. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 113,000.

- Salina, KS, USA

problem #41

Oct 142022

Passat

  • 79,000 miles
The contact owns a 2015 Volkswagen Passat. The contact stated while driving 5 mph and making a left turn, the vehicle stalled in the middle of the road of oncoming traffic. The contact placed the vehicle into park and restarted the vehicle. The contact stated no warning light was illuminated. Additionally, the vehicle would shudder and idle at a high RPM when she started the vehicle. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that a fuel pump sensor needed to be replaced. The vehicle was repaired; however, the stalling failure reoccurred. The contact stated that the check engine warning light was also illuminated. The manufacturer had not been informed of the failure. The failure mileage was approximately 79,000.

- Kansas City, KS, USA

problem #40

Apr 292022

Passat

  • miles

A D V E R T I S E M E N T S

The car consumes one quart of oil per week. Also, the Electronic Stabilization Control and ABS cause the car to sputter and stop. This happened in 2019 and now it is happening again in 2022.

- Largo, MD, USA

problem #39

Sep 292021

Passat

  • miles
The car went 8 blocks 35mph the engine started shaking, I was stopping at the red light the car surging forward with my foot on brake engine still shaking. This all happened in 3 minutes. No lights on dashboard, the rpm dropped from 2,000 to 1,000 and then everything was ok.

- Posen, IL, USA

problem #38

Oct 022021

Passat

  • miles
Engine time chain skipped. Fuel rail leak from regulator(dangerous to drive as it can catch on fire). Suspension problem car shakes over 40mph(alignment and balance did not help), problem due to coils or other components. Mechanic shop checked car and they denied to work on it due to fuel recall.

- New Castle, DE, USA

problem #37

Sep 182021

Passat

  • miles
The oil light/message comes on, the engine burns oil excessively about 1 quart every 1,000 miles or so. Our biggest fear is that this will continue to get worse and the engine may seize up at some point due to this issue and cause a loss of power and/or a severe accident for us or anyone operating one of these VW vehicles with the same issue. VW indicated that this is "normal" but it does not seem "normal". We have never owned a vehicle (even older vehicles back in the 80s/90s) that had an issue like this, and this is a newer (2015) vehicle that we bought brand new. We had the shop look at the vehicle and they said it is burning oil and there might be a class-action against VW for it burning oil. It did not have this issue until some time after 30,000 miles which tells us that something changed in the engine at some point. With all of the burning oil, this cannot be good for air quality and the environment - not sure how many of these engines are on the road currently, but multiplied out it has to be contrary to any clean air acts that may exist in various states or at the federal level. Additionally, the oil is special "european" and is relatively expensive - the manufacturer indicates up to 10,000 miles between oil changes, so that could be up to 10 quarts of oil burning into the atmosphere (and costing money) for a single VW vehicle every few months, not to mention the safety concern if someones engine seizes up as a result causing a loss of power, loss of power steering, loss of power brakes, etc. The date shown for 'incident' is the most recent date that we had to add oil due to this issue.

- Saint Charles, MO, USA

problem #36

May 042021

Passat

  • miles

A D V E R T I S E M E N T S

On May 4th 2021 start button was replaced. While driving back the car from the dealer, car started to idle violently. Same thing happened the next day. So I drove it to the dealer. Service Manager requested a mechanic to drive the car around and this time we could not reproduce the problem. Instead of running any diagnostics, service manager asked me to leave. Then for past 3 months this problem has been happening on and off. For past 3 days the car started to shake violently at lights (awaiting green signal) and ESC warning started to appear on the dash board. Today I took it to the dealer and they suggested me to change intake cam shaft etc with a total estimate of $ $5000 Before the change of start button this car ran just fine.

- Fremont, CA, USA

problem #35

Aug 012019

Passat

  • 160,000 miles
Car is burning excessive oil within 3,000 miles after oil change

- Hurt, VA, USA

problem #34

Jan 152021

Passat

  • 0 miles
I bought this vehicle at drivetime in pittsburgh (North hills) with 36,000 miles. The engine had a loud sound from the moment that I took it off the lot. I was told "that is how vws sound". progressively it has got worse, now I have an estimate to replace a timing chain and camshaft with only 82,987 miles. This is insane. It has always been bad, and I am furious.

- Pittsburgh, PA, USA

problem #33

Jan 012019

Passat 4-cyl Diesel

  • 45,000 miles
The epa & carb required modifications to my diesel vehicle that on reading the technical details in the required paperwork, my vehicle actually pollutes slightly more after the fix! less mileage, less power, pollutes slightly more. Contacted epa & carb many times to ask them to explain the emissions after their 'fix, ' never returned email or call. Noting other car makers using the same engine control unit from bosche, those cars were either made exempt or given a software fix (no hardware modifications like VW). It seems like VW drivers are being punished because VW lied. Other car makers who got caught (all bosche edc17 engine computers), admitted to epa and just paid the fines immediately to epa, unlike VW. Really, it seems like epa and carb are punishing the end consumer because VW lied. I get 300 to 400 fewer miles a tank, slightly worse emissions... what gives" good for fuel tax though. Would like an investigation into corruption of carb and epa as it seems the second tdi fix is for government / California ego. Please reference page 8 of the attached pdf and look at all the emissions, why did carb join some of the measurements together? what are they trying to hide? simple math will show you that the new measurements equal the old federal numbers once you join the same measurements together. What was accomplished" my car performs worse at 300 less miles a tank. Yep, looking wholistically, 300 miles less per tank is actually worse for the environment yet great for fuel tax!

- Florence, OR, USA

problem #32

Dec 132019

Passat

  • 40,000 miles
I was driving on flat paved road at speed of 25-30 mph when suddenly the RPM surged from 1 to 4, engine revved, made loud high pitch whine for several mins. I was not accelerating, only following another vehicle ahead. I was going to pull off the road and turn off the ignition, when this stopped & continued driving normally and noted the RPM was back to near 1. no panel or engine lights came on.

- Youngstown, OH, USA

problem #31

Nov 182019

Passat

  • 82,000 miles
Transmission leaking major car randomly shut off while in drive while stopped in traffic rough idling. Can cause an accident if there's busy traffic on major side street and you not paying attention

- Antioch, TN, USA

problem #30

Nov 212019

Passat

  • miles
Heater not heating as should. Heater core seems to plugged, similar to tsb 80-15-04 on earlier models. VW does not have a tsb or campaign to address. This could impact visibility in the winter time.

- Ramsey, MN, USA

problem #29

Mar 092019

Passat

  • 70,000 miles
Car lost power while driving. Almost caused crash, as I was accelerating and sudden loss of power with cars coming. Car would not rev over 2K RPM, and took about 2 minutes to get to 45mph. Dealer diagnosed car and said high pressure fuel pump was bad. They changed that, fuel filter, and cleaned diesel tank.

- Auburndale, FL, USA

problem #28

Sep 042019

Passat

  • 82,500 miles
My heater core is bad. There was a previous recall on older Passat models, but for 2015 it is not included. I had to pay $871 to have my heater core replaced, as it started to leak coolant in my car. One of the hoses going to my firewall also busted, so it had to be changed. The car was leaking lots of coolant from under the car too. On 9/11 after they supposedly fixed it on 9/07/19, my low coolant light turned on. I was near dealer, so they said they would look at it. They think it had an air bubble that came out, which made my coolant light come on. They topped it off. Dealer said they changed my heater core, but I still have no heat inside my car. Taking back 9/23 to have car looked at.

- Auburndale, FL, USA

problem #27

Jul 172019

Passat

  • 64,583 miles
The contact owns a 2015 Volkswagen Passat. The contact stated that the vehicle decelerated on its own. On another occasion, while attempting to accelerate from a red light, the front tires spun and the vehicle did not move. The body of the vehicle shook. After a while, the contact was able to drive home safely. The contact stated that the traction and check engine warning indicators illuminated. The vehicle was taken to an independent mechanic who diagnosed that spark plugs #2 and #3 misfired. The vehicle was also driven to an auto repair shop, but was not repaired. The manufacturer and dealer were not made aware of the failure. The failure mileage was 64,583.

- Takoma, WA, USA

Read the next 20 complaints »

Not what you are looking for?