What is crankshaft sensor BMW?

Asked By: Himad Ayen | Last Updated: 19th March, 2020
Category: automotive auto parts
4.4/5 (166 Views . 44 Votes)
What Does a Crankshaft Sensor Do For Your BMW? The crankshaft position sensor is specifically responsible for determining the optimal position and speed of the crankshaft so that the car's computer can refine its functionality.

Click to see full answer


Also asked, how do I know if my crankshaft sensor is bad?

Symptoms of a Bad or Failing Crankshaft Position Sensor

  1. Issues starting the vehicle. The most common symptom associated with a bad or failing crankshaft position sensor is difficulty starting the vehicle.
  2. Intermittent stalling. Another symptom commonly associated with a problematic crankshaft position sensor is intermittent stalling.
  3. Check Engine Light comes on.

Additionally, how much is a BMW crankshaft sensor? The average cost for a BMW 328i crankshaft position sensor replacement is between $265 and $394. Labor costs are estimated between $159 and $201 while parts are priced between $106 and $193.

Also to know is, what will a bad crankshaft sensor cause?

The wiring harness is the most common problem associated with crank sensor failure. This can be the result of improper voltage, ground or return circuit problems. Loose wiring, oil and debris can wear down the wiring harness, causing a disruption of voltage or wear and tear on the wiring itself.

Can you test a crankshaft position sensor?

A multimeter can measure voltage, current, and resistance. You can remove the sensor, and then test the resistance. Attach one end of the multimeter to each wiring lead of the sensor. Another way to test the crankshaft sensor with a multimeter is by checking the output voltage with the engine cranking.

29 Related Question Answers Found

Can a car run without a crankshaft position sensor?

The crankshaft position sensor is the most important of all engine management sensors, and the engine will absolutely not run without it. Many systems are smart enough to try guessing should this sensor fail and allow the engine to run without it. In your case, a magnetic crankshaft positioning sensor is used.

How much does a crankshaft sensor cost?

The average cost for a crankshaft position sensor replacement is between $190 and $251. Labor costs are estimated between $102 and $130 while parts are priced between $88 and $121.

Can you clean a camshaft sensor?

Cleaning the Camshaft Position Sensor
Sometimes, cleaning the camshaft sensor can do the trick and bring back your ride's optimum performance. After that, take the sensor out and place it on a clean rag. Step 4: Next, spray some aerosol solvent on the camshaft position sensor and then use a new rag to wipe it dry.

What's the difference between a camshaft sensor and a crankshaft sensor?

The Camshaft sensor determines which cylinder is firing to establish injector synchronization and coil firing sequence in DIS systems. Crankshaft sensors set ignition timing, supply the RPM signal, and determine engine speed.

What does a crank sensor control?


A crank sensor is an electronic device used in an internal combustion engine, both petrol and diesel, to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters.

Can you clean crankshaft position sensor?

Before installing the new sensor use a clean rag to clean the position sensor port hole. You can spray cleaner on the shop towel to aid the cleaning process. Position the new crank sensor squarely into the sensor port hole and firmly push it into place.

How does a crankshaft sensor work?

A Crankshaft Position Sensor (CKP) is a magnetic type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft, that tells the Fuel Injection Computer or the Ignition Control Module the exact position of the cylinder pistons as they come up or go down in the engine cycle.

How much is a camshaft sensor BMW?

The average cost for a BMW 328i camshaft position sensor replacement is between $223 and $403. Labor costs are estimated between $52 and $67 while parts are priced between $171 and $336. Estimate does not include taxes and fees.

Where is the crankshaft sensor on a BMW 318i?

The crankshaft position sensor is located near the starter motor, mounted in the engine block. The sensors read a toothed-reluctor wheel mounted to the end of the crankshaft.

How do you test a motorcycle crankshaft sensor?


How to Test a Harley Crank Position Sensor
  1. Turn the key in the ignition to the "Off" position. Turn the "Run/Stop" switch to "Run." Push and hold the odometer "Reset" button.
  2. Turn the key to "Ignition," but don't start the engine.
  3. Wait for the bike to complete the diagnostic of the electronic control module and the ignition control module.

Will a bad crankshaft sensor throw a code?

Intermittent Stalling
If the crankshaft position sensor or its wiring have any issues, it can cause the crankshaft signal to be cut off while the engine is running, which can cause the engine to stall. This is usually a sign of a wiring problem. However, a bad crankshaft position sensor can also produce this symptom.

Where is the crankshaft position sensor?

The location of the crankshaft position sensor can vary from one vehicle to another. Obviously it must be close to the crankshaft, so it is most often located on the front underside of the engine. It can usually be found mounted to the timing cover. Sometimes it may be mounted at the rear or the side of the engine.

Does crankshaft sensor affect fuel pump?

Lowered Fuel Efficiency: Since a bad sensor affects fuel injection, the engine will not receive the proper amount of fuel at the right time, resulting in lower fuel efficiency. Engine Stall: Crankshaft sensor problems can also make your engine stall at low speeds and the car will have difficulty while starting.

Does crank sensor control fuel pump?

I can understand that the absence of a crank position sensor signal can prevent the engine from starting (the ECU won't allow the car to run without it). The lack of signal could also prevent the fuel pump relay from activating and priming the fuel lines.

How long does a camshaft sensor last?


The camshaft position sensor on a car is built to last as long as the car does, but in most cases it will have to be replaced well before that. Just like any other sensor or switch on a car, the camshaft position sensor will take a lot of abuse due to the heat that the engine produces.

What causes p0335 code?

Causes of Code P0335
A worn out or damaged crankshaft position sensor is the most obvious cause of trouble code P0335. If you have been in a car accident recently, it could have possibly damaged your crankshaft position sensor without you knowing.

What is the code for crankshaft position sensor?

Overview. Error Code P0335 is described as Crankshaft Position Sensor “A” Circuit Malfunction. This means the vehicle's ECM (Electronic Control Module) has not yet detected the crankshaft position sensor during the first second of cranking of the engine.