IAT reading permanently shows unrealistic hot temperature.
P0113 — also written PO113, P 0113, 0113 — is the OBD-II code for iat sensor circuit high input. Same code, same fix: this page covers every spelling of it.
Intake air temperature sensor high input — usually a disconnected sensor, broken wire, or a sensor that's been knocked loose during recent service work.
P0113 is a sensors fault code, typically costing £25–£180 to put right in a UK garage.
What P0113 actually feels like to drive
- Slightly poor cold-start performance
- Engine runs slightly rich (black tinge on exhaust tip)
- Engine warning light shortly after starting
- Very minor MPG drop
- Often appears after a service or air filter change
What causes P0113?
- Open circuit
- Failed sensor
- Corroded pin
UK vehicles that throw P0113 most often
- VW Golf / Audi A3 (1.4 / 1.8 TSI)
- BMW 1/3 Series N20 / B48 petrol
- Ford EcoBoost engines
- Vauxhall 1.4 / 1.6 turbo petrol
- Mini Cooper S
How P0113 is fixed
- Replace sensor
- Repair wiring
The P0113 misdiagnosis that wastes money
If the code appeared right after a service, 99% of the time the air temperature sensor connector has been knocked off or not fully clicked back on. Don't pay for a sensor before someone checks every connector around the air intake.
What a UK garage should charge for P0113
Intake air temp sensor £25–£75 fitted, free if it's just a re-clipped connector at the workshop that did your last service.
P0113 repair cost in the UK
Most P0113 repairs land between £25–£180 including parts and labour. The spread is wide because the cheap fix (a sensor, a hose, a leak) and the expensive fix (a major component) throw the same code — which is why a proper diagnosis before parts are bought saves the most money.
Bob's tip on P0113
On VAG TSI engines the IAT is often combined with the MAP sensor in one housing — make sure your scan tool shows which specific bank/circuit is reporting, so you don't replace the wrong component.
Can you drive with P0113?
Yes.
Urgency: low.