Sensor Diagnosis
A differential pressure sensor that reads wrong will report a blocked filter that is perfectly clear, and the usual cost of that is a filter cleaned for no reason. Testing the sensor means working on the vehicle. What we can do is measure the filter, which settles whether it was ever the problem.
- Typical duration
- Not carried out here
- What we measure
- The filter
- Who tests sensors
- Your workshop
- Report issued
- Every job
What we can do instead
Differential pressure and temperature sensor testing is carried out on the vehicle by your own workshop. We measure the filter itself.
- Bench measurement of the filter, which tells you if the sensor was lying
- A clear filter identified before anyone pays to clean it
- Sensor testing and replacement on the vehicle is your workshop
- Ask us and we can suggest a workshop that carries it out
At a glance
- Duration
- Not carried out here
- Indicative price
- Quoted per job
- Category
- Systems & Sensors
- Written report
- Included
Prices are indicative and depend on vehicle, filter size and condition. You receive a firm figure after the diagnostic pass, before any work is authorised.

What you get back
Each of these is a figure we record and hand over in writing, not an estimate offered at the counter.
The filter
What we measure
Your workshop
Who tests sensors
Every job
Report issued
Every job runs through the same documented six-step sequence, whichever service brought you in.
See the processOften needed alongside this
A blocked filter rarely has a single cause. These are the services most commonly carried out in the same visit.
Book sensor diagnosis
Tell us the vehicle, the symptoms and any fault codes on the dash. We will confirm whether this is the right service before you commit to it.