Just a quick thread on replacing the O2's, all four on the 04' Disco II. I found some Bosch at Parts Geek for $43 for the downstream O2's each and $50 for the 2 O2's upstream. I have 110K miles and throwing 130 and 171 codes.

I suppose it's time to replace them. Anybody have say on whether or not it's bad/good to run Bosch in the Rovers?

 

Bosch is the OEM manufacturer for the sensors in the rover so you're just replacing with a part they'd use at the dealership (assuming you got the correct PN)

 

Thanks, I'll take a look at these part numbers on the new O2 sensors that I'm buying. Part numbers for the OEM Bosch in the Rave manual somewhere?



Part Number: 17936-07098971
Part Number: 17936-07098909

 

I just put 4 Bosch direct fit O2 sensors on my 2000 and it made a significant difference in fuel economy and engine smoothness at idle and under acceleration.

https://landroverforums.com/forum/di...cements-64421/

Well worth the time and money from my perspective...

 

My fuel mileage is pretty bad, I'm thinking new o2's will help out. I've been reading all the other threads on the sensors and some are saying just replace the two sensors before the cats? Any suggestions on whether to replace all four or just the fronts? I have around 110K miles on the truck.

 

For the price, I decided that replacing all four was within reason... Based on my milage improvement, it will pay off fairly quickly.