Audi Q5 Spark Plugs: Intervals, Fitment & Warning Signs
On the Q5, a coil pack replacement on related models genuinely hasn't always fixed a misfire, with worn plugs turning out to be the actual cause.
Illustration for editorial purposes
Opens live listings in a new tab.
OEM Part Number: 06H-905-611 (as quoted in catalogue listings — confirm via engine code) — aftermarket NGK 5757 / Bosch 0 241 245 673
| Petrol engines in this generation | 2.0 TFSI quattro 180, 211, 220, 224 and 230 HP; 2.0 TFSI Flexfuel quattro 211 and 220 HP; 2.0 TFSI Hybrid quattro 245 HP; 3.0 TFSI quattro 272 HP; 3.2 FSI quattro 270 HP |
|---|---|
| Spark plugs (aftermarket) | NGK 5757 (platinum, 16 mm hex, M14x1.25, 19 mm reach); NGK 94460 (platinum); NGK 94976 (platinum); NGK 1675 (platinum); NGK 93322 (platinum); NGK 94833 (platinum, 26.5 mm reach); Denso PK22PR8 (platinum); Denso IK20TT and IK22FTT (iridium) |
| Genuine (OE) numbers quoted | Denso PK22PR8 quotes OE 06H-905-611 (alternative VK22) |
| Fitment notes | All are M14x1.25, 16 mm hex plugs, mostly platinum; NGK 1496 is the LPG/CNG laser plug. |
Audi Q5 Spark Plugs: A Cheap Part That Causes Expensive-Feeling Problems
Worn spark plugs on the Audi Q5 rarely announce themselves clearly — a slightly rougher idle, a bit less punch off the line — symptoms easy to blame on almost anything else in the engine bay. The part itself costs very little, which makes it an easy one to overlook for far longer than it should be.
Audi Q5 Spark Plugs: What They Do
The Audi Q5's spark plugs ignite the compressed fuel-air mixture inside each cylinder, and their condition directly affects combustion efficiency, fuel economy and smooth running. Petrol engines rely entirely on them; diesel engines don't use spark plugs at all, relying on compression instead.
Audi Q5 Spark Plugs: Generations, Engines & Spark Plug Count
| Diesel variants | Not applicable — diesel engines use compression ignition and have no spark plugs at all |
|---|---|
| Petrol four-cylinder (40 TFSI, 45 TFSI) | 4 spark plugs — one per cylinder |
| SQ5 (3.0 TFSI V6) | 6 spark plugs — a genuinely different engine family from the standard four-cylinder units |
Audi Q5 Spark Plugs: Watch: Replacing It
8R Q5 2.0T on the B8 platform
Opens live listings in a new tab.
A Genuinely Useful Piece of Context Worth Knowing About Persistent Misfires — Audi Q5 Spark Plugs
If a coil pack replacement hasn't resolved a persistent misfire, this is genuinely worth knowing: documented cases on related Audi models describe a coil pack replaced for a specific cylinder's misfire, only for worn or carbon-fouled spark plugs to turn out to be the actual cause instead.
It's also genuinely worth knowing that failing to fully click the rear coil pack connectors back into place is a frequently documented cause of a misfire appearing immediately after fitting new coils, and that mixing coils from different sources rather than replacing them all together has been documented causing ongoing misfires.
Audi Q5 Spark Plugs: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Spark Plugs Guide for symptoms of worn plugs, why matching your exact plug specification matters, and trusted brands to buy from.
More Audi Spark Plugs
The same part, covered across other Audi models.