Front oxygen sensor on bank 2 is switching too slowly.
P0153 — also written PO153, P 0153, 0153 — is the OBD-II code for o2 sensor circuit slow response (bank 2, sensor 1). Same code, same fix: this page covers every spelling of it.
Your front oxygen sensor on the 'other' side of the engine is getting lazy, usually because it's fouled up or just worn out. It's a common headache on V-engines like the Jaguar XF or older Lexus IS250s.
P0153 is a emissions fault code, typically costing £90–£340 to put right in a UK garage.
What P0153 actually feels like to drive
- The car feels 'doughy' or hesitant when you're pulling out of junctions.
- Noticeable drop in MPG—you're getting 250 miles to a tank instead of 300.
- Lumpy idling when sitting at the traffic lights in town.
- A slight smell of unburnt petrol from the tailpipe when you park up.
- The engine light stays on, but the car drives well enough to get home.
What causes P0153?
- Aged sensor
- Contaminated with silicone or oil
- Exhaust leak
UK vehicles that throw P0153 most often
- Jaguar XF 3.0 V6 Petrol (2008-2015)
- Lexus IS250 2.5 V6 (4GR-FSE) 2005-2013
- Vauxhall Insignia 2.8 V6 Turbo (A28NER)
- Mitsubishi Shogun 3.2/3.5 V6 (2000-2010)
- BMW 330i (E90) N52/N53 Engines
- Land Rover Discovery 3/4 4.4 V8 Petrol
How P0153 is fixed
- Replace O2 sensor
- Fix contamination source
The P0153 misdiagnosis that wastes money
I see a lot of lads jump straight to the sensor, but half the time they're ignoring an air leak on the intake or a tiny crack in the exhaust manifold. On those Lexus V6s or the Jaguar S-Types, the PCV hose often perishes and sucks in unmetered air, making the sensor look 'lazy' when it’s actually just struggling with a lean mix. They swap for a cheap £30 eBay sensor, the code comes back in two days, and they've wasted their money on a part that was never the root cause.
What a UK garage should charge for P0153
A diagnostic plug-in should cost you £40–£70 depending on where you live. For the part, a genuine Bosch or Denso sensor will be £80 to £160. Labour is the wildcard—on a Jag or Lexus, Bank 2 Sensor 1 is usually the one tucked right against the bulkhead or under a heat shield, so expect 1 to 2 hours (£60–£180). Total bill usually lands between £180 and £340. Avoid the 'universal' sensors where you have to snip wires; they're a nightmare for resistance issues.
P0153 repair cost in the UK
Most P0153 repairs land between £90–£340 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 P0153
If a garage tells you it's definitely the sensor without even opening the bonnet, walk away. Insist on a 'live data' check. Ask them, 'Are the switching cycles staying above 0.5Hz?' If they look at you blankly, find another shop. Also, if you’re driving a car like an Audi A6 or a Shogun with a V6, insist on a Bosch or Denso sensor. I've seen 'white box' budget sensors from the local factor fail out of the box or throw the light back on within 500 miles. It's not worth the £40 saving on labour if you have to do the job twice.
Can you drive with P0153?
Yes.
Urgency: medium.