This bulletin provides informaiton when the engine is not running smoothly, misfiring.
full bulletin at NHTSA ↗2014 Audi A4 engine problems
moderate Owners of the 2014 Audi A4 have filed 22 NHTSA complaints about the engine, typically surfacing around 52,000 miles at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Failure mileage
Complaints
22
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2010 A4 | 43 |
| 2011 A4 | 14 |
| 2012 A4 | 11 |
| 2013 A4 | 17 |
| 2014 A4 (this page) | 22 |
| 2015 A4 | 17 |
| 2016 A4 | 7 |
| 2017 A4 | 19 |
1fire
When does it fail?
Of the 22 engine complaints filed for the 2014 Audi A4, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 12 model years of Audi A4 in our records for engine problems, this one ranks #3 by owner-complaint volume.
Engine accounts for 29% of all owner complaints filed against this vehicle, across 5 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
full bulletin at NHTSA ↗This bulletin provides information regarding UV leak additive for finding oil leaks.
full bulletin at NHTSA ↗This bulletin provides informatin when the engine does not run smoothly at idling speeds.
full bulletin at NHTSA ↗This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report multiple distinct engine failures in 2014 Audi A4s. The most common complaint is excessive oil consumption—some vehicles burn a quart every 300–400 miles, others every 800–900 miles. Owners and dealers link this to faulty piston rings and piston seals; one dealership service person mentioned this occurs in 15–20% of these cars by 50,000 miles. Related issues include oil leaks from valve cover gaskets and timing chain cover gaskets, sometimes appearing around 46,000 miles.
Timing chain failure is cited in multiple complaints—chains stretch, tensioners fully extend, and intake camshaft timing drifts. One owner reports sudden stalling while arriving at a repair facility; another describes engine shutdown mid-highway with loss of power steering and brakes. Owners note Audi has acknowledged timing chain defects in federal class-action litigation.
Coolant pump failures appear repeatedly. Three failures in 12 months were reported, each leaving the vehicle stranded after overheating. Owners claim the pump casting has an internal design flaw where the radiator connection port pulls apart, causing gasket failure. A recall (18V229000) addresses engine and cooling issues, though some owners say they were charged despite recall coverage, and parts remained unavailable for extended periods.
One engine fire occurred while the vehicle was parked with ignition off. Another owner reports engine shutdown with mechanical or electrical blockage. Intake valve spring failure on cylinder 4 caused rattling, shaking, and EPC light illumination. Low compression and piston failure at 62,000 miles required engine replacement.
Same Audi A4 engine reports on nearby years: 2011 · 2012 · 2013 · 2015 · 2017
Failure modes owners describe
Excessive oil consumption
Engine burns excessive amounts of oil, requiring frequent top-ups. Owners report needing to add oil every 300–900 miles depending on vehicle. Root cause attributed to defective piston rings, piston seals, and breather valve issues.
When: Begins early in ownership; one owner at 85,000 miles reports worsening over time; another at 75,000 miles states issue present since day one
Symptoms owners cite: Low oil warning light on dashboard; Service engine light illumination; Oil visible on engine bottom and top; Engine misfires; Need to add half quart or full quart every 300–900 miles
Codes mentioned: Service engine light, Low oil indicator
Repairs/costs cited: One owner reports dealership dye test showed no external leaks; dealership refused repair under class-action settlement covering defective piston/ring/seal issue up to 100,000 miles. Another owner states mechanic identified faulty piston rings.
Recalls/TSBs owners mention: Class-action settlement exists covering piston/ring/seal defects up to 100,000 miles on this model; some owners report dealerships refusing to honor settlement. Audi acknowledged defect in federal litigation.
Timing chain and tensioner failure
Timing chain stretches and tensioner fully extends, causing intake camshaft timing to drift. Audi acknowledges this defect in federal class-action litigation (Opheim et al. v. Volkswagen Group of America). Timing chains are considered lifetime components not listed as maintenance items.
When: Outside settlement mileage limit in one case; sudden failure without warning
Symptoms owners cite: Sudden engine stall while in motion; Engine becomes inoperable; Power loss; Loss of power steering and brakes when stalled mid-highway
Codes mentioned: Intake camshaft timing off by one tooth
Repairs/costs cited: One owner reports Audi dealership technician confirmed stretched timing chain, fully extended tensioner, and off-by-one-tooth camshaft timing.
Recalls/TSBs owners mention: Audi has acknowledged timing chain defect in federal class-action litigation; manufacturer denies responsibility in cases outside settlement parameters.
Coolant/water pump failure
Coolant pump fails repeatedly due to internal casting defect. Connection port to radiator tubing pulls apart internally; gasket overheats and fails. Dealership service confirms it is an engineering flaw that Audi has not redesigned.
When: First occurrence at 52,000 miles; second at 69,000 miles; third at 84,000 miles in one owner's vehicle. Another owner at 25,392 miles.
Symptoms owners cite: Engine overheating; Vehicle disabled on roadside; Engine and oil pressure indicators illuminate; Coolant pump extremely hot—fire hazard noted; Foul smell in cabin; Loss of power to brakes and steering
Codes mentioned: Engine and oil pressure indicators, NHTSA campaign 18V229000 (Engine and Engine Cooling)
Repairs/costs cited: Replacement required; costs around $2,300 at dealership. One owner charged despite recall eligibility. Replacement parts were unavailable for extended periods; manufacturer stated working toward availability in November 2018 with no guarantee.
Recalls/TSBs owners mention: NHTSA recall campaign 18V229000 issued for engine and engine cooling. Some dealerships charged owners despite recall status; parts unavailable for extended periods.
Valve cover gasket and timing chain cover gasket leaks
Both valve cover gaskets and timing chain cover gaskets leak, causing major oil leaks that can negatively impact engine if unrepaired. Dealership service person indicated this occurs in 15–20% of cars by 50,000 miles.
When: Around 46,000 miles; 4-year-old vehicle
Symptoms owners cite: Major oil leak; Oil visible on engine
Repairs/costs cited: One owner paid over $2,000 for gasket replacement after 10% dealership discount. Service person stated this is preventable-free problem.
Recalls/TSBs owners mention: No manufacturer response reported; owner characterized as manufacturing defect that should trigger recall.
Intake valve spring failure
Intake valve spring on cylinder 4 fails, causing rattling and shaking. Engine hesitates on startup.
When: Purchased 7/24/2020; first failure around 10/27/2020; second failure around 10/28/2020
Symptoms owners cite: Rattling noise from engine; Whole car shakes; EPC light illumination; Hesitant starting
Codes mentioned: EPC light
Loss of engine compression and piston failure
Engine loses compression due to piston failure, requiring engine replacement. One owner reports engine shutdown mid-highway with loss of power steering and brakes; mechanic noted engine mechanically or electrically blocked.
When: At 62,000 miles in one case
Symptoms owners cite: Vehicle shaking while driving; Sudden engine shutdown mid-highway; Loss of power steering and brakes; Engine unable to restart
Repairs/costs cited: Engine replacement required but not completed in one case; another owner's mechanic stated piston failure.
Engine fire
Vehicle caught fire while parked with ignition off, completely destroying the vehicle. No injuries reported.
When: At 52,000 miles; vehicle parked with ignition off
Symptoms owners cite: Smoke from vehicle; Flames visible from front door area
Repairs/costs cited: Vehicle destroyed and towed for investigation by insurance company.
Recalls/TSBs owners mention: Audi Natick and manufacturer were notified; manufacturer provided case number 190350385.
Coolant system malfunction and overheating
Coolant system malfunctions causing engine overheating. One owner notes recall 18V229000 applies but dealership denied it was the cause and charged for service despite Audi customer service stating no charge would apply.
When: While in motion
Symptoms owners cite: Overheating; Foul smell overcoming vehicle; Coolant leak; Heating/cooling warning message
Codes mentioned: Recall 18V229000; Recall 19N4/19N3
Repairs/costs cited: Dealership charged despite recall and Audi customer service statement that repair should be covered.
Recalls/TSBs owners mention: Recall 18V229000 issued; customer service stated repair should be covered at no charge, but dealership charged customer.
Synthesized from 22 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 7 most recent
This vehicle is needing a quart of oil every 300-400 miles. It's a 6 year old car, there is something seriously wrong with Audi engine design. A quart of oil every 300-400 miles is completely unacceptable. Since day 1 this vehicle has had an oil consumption problem now at 75k miles and the problem just continues to get worse.
The timing chain and tensioner in my 2014 Audi A4 Quattro (VIN: [XXX] ) failed without warning, causing the engine to suddenly stall and become inoperable while in motion. This presented a serious safety hazard. Although my vehicle is slightly outside the settlement mileage and time limit, timing chains are considered a lifetime component and are not a maintenance item, meaning they are not…
Loss of power / Turning onto oncoming traffic there was severe hesitation. Which caused the car to not move onto oncoming traffic quick enough causing both oncoming vehicles to maneuver around. Upon going to the mechanic he states I have oil in the engine from faulty piston rings which he states he has seen multiple times in these models.
Intake valve spring on cylinder 4 ( the only warning I received was the car started to make a rattling noise and the whole car started to shake and the epc light then came on, when it starts it is hesitant to start) I purchased car on 7/24/2020 the first time it broke was on/around 10/27/2020 and the car has now encountered the same issuse on /around 10/28/202, I am unsure if this has been an…
I took my car to the Audi service center and they expressed to me that my engine coolant pump was not working and that it had to be replaced. However, they did not tell me it was apart of a recall. Had I known this, I feel as though I should not have been charged approximately $2,300 to get it fixed when it was recalled from something out of my control.
Tl* the contact owns a 2014 Audi a4. While driving, the engine and oil pressure indicators illuminated. The vehicle was pulled over and the contact called his mechanic to come and inspect the vehicle. The mechanic noticed that the vehicle's coolant pump was extremely hot, which could cause the vehicle to catch on fire and explode. The vehicle was towed to the mechanic's shop and then to Audi.…
Takata recall purchase a 2014 Audi a4 from a local dealership. After a month due to a over heat the enginee blow up. Insurance was not able to take the claim since it wasnt due to coallition, and oil was clean. Mechanic wasnt even sure what happen. I just received a recall notice, now im dealing with a debt of 10000. Neither dealer, mechanic or insurace mentioned anything on recalls.
Had engine trouble with your 2014 Audi A4?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2014 Audi A4?
It's a documented issue but not catastrophic. 22 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 10 complaints that reported odometer mileage, most engine failures cluster between 46,500 and 74,000 miles, with the median around 52,000. A quarter of owners report trouble before 46,500; a quarter make it past 74,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2014/Audi/A4.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.