4.6

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
23,168 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.

2017 Audi A4 engine problems

engine problem

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2017 Audi A4 Owner Comments

problem #17

May 122023

A4

  • miles

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

Start Stop system failures. Upon engine restarting, it stalls instead. This has happened on multiple occasions and the dealer response is to just turn it off every time you start the car. Causes dangerous situations due to inability to move car until full power cycle happens.

- Arvada, CO, USA

problem #16

Feb 222023

A4

  • miles
The Thermostat and it's house is failing on my of the 2017 audi a4 causing the coolant water to leak which makes the car heat up quickly due to leak and not having sufficient coolant water. So many of the b9 generation of audi a4 owners are also complain about this issue. Audi is charging $2500 to fix this known issue.

- Jersey City, NJ, USA

problem #15

Mar 292022

A4

  • miles
Random Engine Coolant Warning. Since purchase of vehicle mid-March 2022, I have randomly received engine coolant warnings on the dashboard. Visual checks of the coolant reservoir reveal no issues. Internet search of issue reveals a number of other owners have had the same problem. Issue has occurred at all speeds and temperature conditions.

- Palm Springs, CA, USA

problem #14

Dec 072022

A4

  • miles

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

Symptom of low coolant in overflow reservoir; below minimum line. Pressure test concluded leak in thermostat/water pump part. Appears to be a rampant problem spanning over a decade and affecting multiple trims and redesigns (i.e B8/B9 redesign/updates). Safety put at risk for possible vehicle fire or high pressure damage for engine coolant/radiator. The problem was reproduced and confirmed at a local (non-audi dealership) repair shop. They stated that the low level of coolant was due to a small leak in the thermostat/water pump housing. The vehicle has not been inspected by the manufacturer, police, or insurance. It will soon be in the local Audi dealership for a second opinion and/or possible resolution. I received a warning indicator on the dash and written pop up message on the dash board that indicated low coolant reservoir level. No OBD codes were collected by the independent service shop. They said that non were being displayed or read besides what was displayed on the dash.

- Plano, TX, USA

problem #13

Jun 012022

A4

  • miles
Engine light on Dealership found a rodent nest in the engine space in the car. Dealership considers that fluids used to coat Audi engine wiring attract rodents. Dealership considers this to be a health and safety issue. Dealership considers it essential to replace the Audi air filter. Dealership is checking wires to assess any gnawed damage. I need the engine to be power-washed and the nest area treated w/bleaching agents. I do not have the total estimate on this but it will be greater than $1,000.

- New York, NY, USA

problem #12

Mar 232022

A4

  • miles
My 2017 Audi A4 Quattro is now five years old. There is only 26,000 miles on the vehicle. Mostly local miles. I noticed drops of red fluid on the garage floor under the engine compartment. My mechanic investigated and found the issue to be leaking coolant from the thermostat/pump housing. It is obvious that the leak has been occurring for awhile as there is dried white residue all around this area. The engine cover under the engine compartment was all wet with coolant. The coolant reservoir was also low. The car's information system did not indicate an issue, but I am sure it would have eventually (at probably a very inconvenient time and location ! ). I've noticed several other Audi owners complain about this same issue. This will no doubt be an expensive repair which is totally unacceptable for a car like this with such low mileage.

- Macungie, PA, USA

problem #11

Jan 042021

A4

  • miles

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

Coolant leakage and pump problem for engine cooling. Unit was replaced.

- Fremont, CA, USA

problem #10

Nov 022021

A4

  • miles
This car has a KNOWN issue with the water pump housing leaking well before the expected lifespan of said part/gasket and Audi has not issued a TSB regarding it. It's unacceptable that a luxury car needs such a major repair with few miles (many users are experiencing this well before 40k miles) and if you are out of the original warranty, you're stuck with a $1k+ bill. My car with just about 47k miles on it has been slowly leaking from this part for about a year now and will need to be fixed soon as my coolant level is dropping steadily.

- Levittown, PA, USA

problem #9

Oct 152021

A4 4-cyl

  • Automatic transmission
  • miles
Significant leaking from water pump and thermostat housing.

- Perry Hall, MD, USA

problem #8

May 312021

A4

  • miles
While driving on the highway, there was a message that flashed on the dashboard about the coolant system, within a couple minutes, I felt like the car was shutting down while going 65 miles per hour. So I pulled over on the shoulder of the Turnpike Southbound in Miami. This cased a great safety problem for me, as this happened while I was driving on the highway then I had to be on the right shoulder of the highway and had to call for road ranger. When the road ranger came to inspect the car, he tried to add coolant and realized that there was a fuel leak, the car would not start, the coolant drained completely out of the car. I then had to call AAA to get the car towed.

- Coral Springs, FL, USA

problem #7

May 012021

A4

  • miles

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

Car leaking coolant through thermostat housing or coolant pump

- Mount Vernon, NY, USA

problem #6

Apr 142021

A4

  • 26,257 miles
The contact owns a 2017 Audi A4. The contact stated that her vehicle was leaking oil. There was no warning light illuminated. The vehicle was taken to steven creek Audi (751 South winchester blvd, san jose, ca 95128, (408)551-4870) to be diagnosed. The contact was informed there was an engine oil leak leading to the turbo charger. The vehicle was not repaired. The manufacturer was made aware of the failure however, no assistance was provided. The VIN was not under recall. The failure mileage was 26,257.

- Snata Clara, CA, USA

problem #5

May 172019

A4

  • 23,000 miles
My vehicle is leaking coolant. Every 8-10K miles it goes below normal level in reservoir. There is a distinct odor of coolant each time I get out of the vehicle. I have had Audi look at it 5 times. They confirm the coolant levels are low and they refill it saying they can't find a leak. I am concern that this is a fire hazard.

- Moseley, VA, USA

problem #4

Aug 032020

A4

  • 59,000 miles
Coolant reservoir was really low. Filled it right away but it went low again a month after. Confirmed from other owners experiencing the same issue.

- Auburn, WA, USA

problem #3

Apr 292020

A4

  • 257,000 miles
The contact owns a 2017 Audi A4. The contact stated that the ac began to blow hot air. The dashboard was removed to replace the sensor used for releasing cold air. Then while driving approximately 65 mph, the transmission warning system activated and informed the contact that they would have to use the paddles to steer the vehicle. The contact took the vehicle to the dealer (Audi fort lauderdale - sales department 1200 N federal hwy, fort lauderdale, fl 33304; (954) 545-4650) who removed the console to replace the transmission. The third issue was that the vehicle had failed to start. The certified mechanic towed the vehicle due to connector function to start the vehicle. The vehicle was returned the vehicle to the dealer who stated that the communication between key and starter had failed and the device that provided this function was replaced. The fourth issue was that while driving approximately 60 mph when the transmission suddenly failed. The contact restarted the vehicle and took the vehicle to the dealer by steering the vehicle using the paddles as suggested before. The manufacturer was made aware of the issue and opened a case regarding the matter. The contact was then referred back to the dealer. The matter had not been resolved. The failures ad reoccurred. The contact stated that all failures had occurred in a total of a 1,100 miles time frame. The approximate failure mileage was 25, 700.

- Fort Lauderdale, FL, USA

problem #2

Apr 012020

A4 4-cyl

  • 28,000 miles
Coolant level was low so took it into the dealer. The thermostat housing was leaking coolant.

- Lake Forest, CA, USA

problem #1

Sep 152017

A4

  • 600 miles
Check engine light only came on once and that is when the intake manifold detected a problem. Audi replaced the intake manifold two times after numerous service visits! the sputter, lag, occurs all the time I even recorded a video but was unable to be rectified.

- Fontana, CA, USA

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