Parts for your 2010 Ford Mondeo-Crank angle sensor

2010 Ford Mondeo crank angle sensor (crankshaft position sensor)

Yes, the 2010 Ford Mondeo does use a crank angle sensor (commonly called a crankshaft position sensor, or CKP). This is documented across Ford’s workshop information (Ford TIS), Haynes’ Ford Mondeo 2007–2014 manual, Autodata technical data and wiring diagrams, and Bosch engine management literature. All common 2010 Mondeo engines—Duratec petrols (1.6/2.0), EcoBoost 2.0, the 2.5T, and TDCi diesels (1.8/2.0/2.2)—rely on a CKP to run.

On this Mondeo, the crank angle sensor tracks the exact position and speed of the crankshaft so the ECU can fire the spark and inject fuel at the right moment. It also helps with accurate idle, clean starts, misfire detection and, on diesels, precise injection timing. Without a solid signal, the engine may crank but not start, stall intermittently, or throw codes like P0335–P0339.

It’s a fit-and-forget part until it isn’t. There’s no scheduled replacement, but it should be checked during servicing if there are driveability complaints or fault codes. Common issues are wiring damage near the plug, oil contamination, or metal swarf on the sensor tip (for magnetic types). A quick visual under the bonnet for chafed looms and oil leaks pays off, especially around the bellhousing area where many variants mount the sensor.

When replacement is needed, a quality OE or OE-equivalent (Motorcraft, Bosch, Delphi) sensor is the go. Cheap no-name sensors can cause hot-start grief or random stalling. General guidance for a competent home mechanic:

• Disconnect the battery and let the engine cool.
• Locate the sensor (typically at the gearbox bellhousing or front of the block near the crank pulley, depending on engine).
• Unplug, remove the retaining bolt, and twist the sensor free. Catch any O-ring.
• Lightly oil the new O-ring, seat the sensor squarely, and torque the bolt to spec per the service data.
• Inspect and tidy the harness, keep it clear of hot or moving bits.
• Clear fault codes and confirm a clean start and stable idle. Some variants may benefit from a crank relearn with a scan tool.

If diagnostics are needed, an oscilloscope trace or proper scan-tool live data beats guesswork. For anyone clocking up lots of kilometres, adding a harness check to regular servicing is an easy win to dodge intermittent no-start dramas.

Popular questions

Where is the crank angle sensor on a 2010 Ford Mondeo?
On most petrol variants it’s found either at the front of the engine near the crank pulley or down by the gearbox bellhousing reading the flywheel/reluctor. The TDCi diesels typically mount it at the bellhousing on the rear of the block. Access varies—sometimes from above, sometimes better from underneath with the undertray off.

Always confirm exact location against engine code in a proper service manual before starting.

What are the symptoms of a failing crank angle sensor on this model?
Classic signs include long cranking or a no-start when hot, random stalling, rough idle, misfire-like behaviour, and the MIL on with codes such as P0335. Intermittent faults often point to heat-soaked sensors or wiring issues near the connector.

If it dies completely, the engine usually won’t start at all because the ECU loses crank sync.

Does the CKP need routine servicing or a replacement interval?
No scheduled interval. It’s maintenance-free, but it’s smart to check the wiring and keep oil leaks at bay during regular servicing. Replace only when faulty and use a reputable OE-grade part. After fitting, clear codes and verify stable operation, perform a crank relearn if the scan tool recommends it.