Parts for your 2013 Bmw X3-Crank angle sensor

2013 BMW X3 crank angle sensor (crankshaft position sensor)

Per BMW’s technical sources—including BMW ISTA/TIS workshop information and the BMW ETK/parts catalogue (commonly accessed via RealOEM) for the F25 X3, model year 2013—the vehicle is fitted with a crankshaft position sensor (often called a crank angle sensor). It’s listed as the “pulse generator, crankshaft” and is used by the DME/DDE engine control. So yes, a crank angle sensor is relevant to and used on the 2013 BMW X3 across the common petrol (N20, N55) and diesel (N47/N57, where fitted) engines.

On the 2013 BMW X3, the crank angle sensor’s job is to tell the engine computer exactly where the crankshaft is and how fast it’s spinning. That precise angle and speed data lets the DME/DDE time fuel injection and spark, coordinate variable valve timing, manage boost on turbo models, and run on‑board diagnostics. Lose that signal and the engine will usually crank but not start, or it may stall once warm. Because it reads a toothed wheel on the crank, the sensor effectively becomes the heartbeat the ECU listens to every revolution.

There’s no routine maintenance interval for this sensor, but it benefits from good housekeeping. Under the bonnet, make sure the harness isn’t chafing, the connector is clean and latched, and oil leaks aren’t tracking onto the plug. Heat and oil contamination are the main enemies. If fault codes such as P0335/P0336 (or BMW-specific variants in ISTA) appear, or if there are symptoms like long cranking, random stalling, or a dead tacho during a no‑start, the crank sensor and its wiring are first to check.

Replacement is straightforward for a trained tech. On N20/N55 it’s typically mounted low on the block near the bellhousing, on N47/N57 it’s similarly positioned by the flywheel area. Expect one retaining bolt and an O‑ring seal. The usual drill is: disconnect the battery, unplug the connector, remove the bolt, wiggle the sensor straight out, lightly oil the new O‑ring, seat the new sensor fully, and tighten the bolt to BMW spec. Clear fault codes and, if prompted in ISTA, run a crankshaft adaptation. Quality matters—OE or reputable OEM sensors tend to give the best signal quality and hot‑start behaviour. Labour time is commonly around 0.5–1.0 hour, with parts cost in Australia and New Zealand typically in the mid‑hundreds depending on brand. No need to replace by kilometres alone—do it condition‑based when symptoms or diagnostics call it out.

• Typical symptoms: extended crank/no start, intermittent stall when hot, rough idle, sudden loss of power, fault codes P0335/P0336.
• Good practice: inspect wiring/connector during services, address oil leaks near the sensor promptly.

Popular questions

Does the 2013 BMW X3 actually have a crank angle sensor?

Yes. BMW ISTA/TIS service information and the BMW ETK/parts catalogue for the F25 X3 list a crankshaft position sensor (also known as a crank angle sensor or pulse generator). It’s required for engine start, spark and fuelling control on both petrol and diesel variants.

Where is the crank angle sensor located on a 2013 X3?

It’s mounted to the engine block reading a toothed wheel on the crankshaft. On the N20/N55 petrols, look low on the block near the transmission bellhousing. On N47/N57 diesels, it’s in a similar bellhousing area, often near the starter. Access is from underneath on most models.

What does replacement usually cost in Australia or New Zealand?

Parts pricing varies with brand, but owners commonly see mid‑hundreds for an OE/OEM sensor. Labour is typically 0.5–1.0 hour. A workshop quote often lands in the AUD/NZD $300–$600 range, depending on engine, access, and whether additional diagnostics are needed.