10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 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.

2018 Audi S5 engine problems

engine problem

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2018 Audi S5 Owner Comments

problem #5

Jul 082024

S5

  • miles

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

After driving for 7 to 8 minutes less that 45 mph, a yellow warning lamp and an audible warning indicating unsafe coolant temperature displayed on the dash. An overheating engine is unsafe for me and drivers near me. I immediately pulled over and turned off the A/C. I then turned on the heater, and after 15 minutes slowly drove 5 minutes to a repair shop (Import Autohaus, Hull Street). The repair shop diagnosed a defective water pump. The pump has not been inspected by anyone other than the mechanics at the repair shop.

- Midlothian, VA, USA

problem #4

Mar 022024

S5

  • miles
I received a coolant overheating message, pulled to side of road. Let vehicle cool off although it just showed coolant warning and actual engine temperature showed normal along with oil temperature. Started car back up and it was ok, drove about a mile, engine started steaming, white smoke out of exhaust, system failure had to pull off and be towed. Engine is destroyed at 72,833 miles.

- Hazard , KY, USA

problem #3

Apr 102023

S5

  • miles
I was returning home from visiting family. My drive was approx 140 miles home. The car was running/driving normally when I stopped at a gas station to get a snack. When I came back to my car and attempted to start it, it would not start and had camshaft and crankshaft sensor DTC's. I had to tow the car to my repair shop who determined that the issue was the rocker arms. Despite performing regular maintenance above and beyond what the manufacturer recommends, two rocker arms fell apart inside the engine (needle bearings came out) and sent metal through the engine, causing it to need to be replaced. It was later determined that this was a known issue by Audi, and that they redesigned the rocker arms at a later date. The did not issue a recall or any extended warranty for the effected models. This cost me $16,349 out of pocket to repair. I contacted Audi several times and they refused to rectify the issue. I have came across several others who have experienced the same issue. I have supporting documentation as well as part numbers and dates that I can provide upon request. This type of issue is a saftey concern because this can leave a driver stranded. When this issue happend I was over 75 miles away from home. Luckily I was able to find a tow truck and had the funds to cover the expense of having the car towed back to my home town. However, this issue could leave someone stranded in the middle of nowhere if they werent as lucky as I was.

- Kansas City, KS, USA

problem #2

Aug 232022

S5

  • miles
The 2018 year for the Audi S5 has a notorious rocker arm failure within the engine. Audi is aware of this problem because they have revised the part for later build dates. However, they have failed to remedy the issue for the vehicles that fall within the problematic build dates. Once this failure occurs, it is catastrophic and will require a new engine.

- Charleston, SC, USA

problem #1

Dec 112018

S5

  • miles
Maximum oil light warning light, reduce oil level, since purchased. Gasoline getting into oil. Removed 9 quarts of gasoline saturated oil out of car. Audi says I need to drive car more. Audi recently replaced oil & filter and said to monitor. Drove car from dealership service, warning light came back on, checked engine with after market oil dip stick, stone smell of gas in oil. Vehicle towed back to dealership

- Indiana, PA, USA

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