Parts for your 2019 Audi Q5-Crank angle sensor

2019 Audi Q5 crank angle sensor (crankshaft position sensor)

Technical sources confirm the 2019 Audi Q5 uses a crank angle sensor. In Audi service literature it’s referred to as the Engine Speed Sensor (G28), a crankshaft position sensor. This is documented across Audi ElsaPro workshop information for FY-series Q5 (2018–2020) and Audi Self-Study Programmes for the EA888 Gen 3B 2.0 TFSI and EA839 3.0 TFSI engines, as well as Bosch engine management documentation (MG1/MED/EDC systems). So yes, it’s fitted and relevant to the 2019 Q5.

On a 2019 Audi Q5, the crank angle sensor is the timing heartbeat. It monitors the crankshaft’s exact position and speed, feeding the ECU the data it needs to control spark, fuel injection, variable valve timing and knock strategy. Paired with a toothed reluctor wheel (typically with a “missing-tooth” reference), the sensor lets the ECU know precisely where each piston is, so the engine fires crisply, starts quickly and runs smoothly under all loads and temperatures.

There’s no routine maintenance item for this sensor, but it pays to keep an eye on tell-tales. Classic signs of a crook crank angle sensor include long crank or no-start when hot, random stalling, rough idle, misfires and a check engine light with codes such as P0335–P0339. Because the ECU relies on this signal to sync everything, a failed sensor can leave the car cranking without firing.

On the 2.0 TFSI, the sensor is typically mounted low on the block near the transmission bellhousing, on the V6, it’s also at the rear of the engine. Replacement is straightforward for a trained tech: battery off, connector unclipped, a single retaining bolt out, sensor swapped with a new O-ring, then refit and torque to the workshop spec. The air gap is set by design—no shims or special alignment usually needed. Always use a genuine or quality OEM-equivalent sensor and inspect the wiring harness for heat or oil damage while you’re in there.

As part of servicing, it’s smart to:

• Scan for stored or pending crank sensor faults if experiencing intermittent start or stall behaviour.
• Check for oil leaks at the rear main area that could contaminate the connector.
• Secure loom routing to avoid chafe and heat soak.

Most workshops allow around an hour for diagnosis and replacement. After fitment, clear codes and confirm clean live data for engine speed on a road test. A healthy G28 signal brings back crisp starts and smooth, efficient running—too easy.

Popular questions

What are the symptoms of a failing crank angle sensor on a 2019 Audi Q5?
Owners may notice long cranking, hot no-start, sudden stalling, rough idle, misfires or the check engine light. Scan tools often show P0335–P0339 codes. Because the ECU can’t sync timing without this signal, the engine may crank but not fire.

Where is the crank angle sensor located on the 2019 Q5?
It’s mounted near the rear of the engine by the transmission bellhousing. On the 2.0 TFSI it’s low on the block, on the V6 it’s similarly positioned at the back of the engine. Access is typically from underneath with the vehicle safely raised.

Does the crank angle sensor need routine servicing?
No scheduled service is required. During regular servicing, technicians should check for fault codes, inspect the connector and loom for heat or oil contamination, and address any leaks. Replace the sensor if faults recur or data is unstable.