Identify your vehicle for a choice of compatible products
Enter your license plate number. Example: MA17 AUO
Also called an oxygen sensor (or lambda probe), the lambda sensor measures the quantity of oxygen present in the exhaust fumes of your SIERRA. There are two types of lambda sensor: heated or unheated and their lifespan differs. You must replace unheated oxygen sensors approximately every 50,000 miles and at the very minimum, every 80,000 miles for heated sensors. A defective oxygen sensor can damage your catalytic converter and is a reason for failing an MOT. To offer you the most suitable lambda sensors for your Ford SIERRA, we invite you to enter the model and exact engine specifications of your vehicle into our selector.
In terms of budget, sensors range from £50 to £100, according to the model of your SIERRA. At Mister-Auto, you will find the best prices on the Web!
A common sign of a defective oxygen sensor is excess fuel consumption: a failing lambda sensor can increase your consumption by up to 15%. Other warning signs include thick black exhaust fumes, smoke, or problems with acceleration and deceleration in your Ford SIERRA. The engine management light or a lack of engine power can also be interpreted as a problem with the sensor.
If your lambda sensor is dirty and you just wish to clean it, please be aware that there are liquid cleaners that can be added to the fuel tank, as well as direct aerosol cleaners.