Lambda sensor advice. X teg v70
 

Hi everyone, I am the proud new new owner of a Volvo V70. It is a straight five 2.4 litre, naturally aspirated petrol engine, (B5244S2). X reg.

I bought it to use as a banger but I rather like it. May decide to fix it up a bit. I asked a friend mechanic if he could read a fault code for me, he turned up with what looked like an armoured ipad. We plugged it in and went for a drive while he fiddled with graphs and settings. His conclusion was, "get a front lambda sensor".

My question is, do I need the more expensive Denso branded sensor or would one of the cheaper aftermarket ones work just fine? ... Are these cars picky about getting OEM stuff?

Hi Bigneil.

If you intend to keep the car a while I'd go for OEM quality. No problems as such with aftermarket, for me they are just such an unknown in terms of durability, sometimes you get lucky, other times not.

As above. Get a Genuine Volvo one. Believe it or not, Volvo's don't like non gen lambda sensors.

Not had to change Lambdas on my V70.
On my 850 (which only has one) I changed it and fitted an MTE one (Brazilian). It had the correct plug so went straight in & 4 yrs later still going strongly (looks for wood).
My understanding is to avoid (like the plague) those so-called universal ones. They come with no plug, just wires that you have to splice in to connect.

LOL, That is good common sense :thumbs_up:, I suppose i was hopping somebody would talk me out of it.

Next question is about ordering the correct part. My V70 was first registered 29. 09. 2000 according to the V5. Year 2000 appears to be a cusp between first gen and second gen causing some confusion on various websites about which is correct part. I think it was released to different markets at slightly different times.

Should I just aim for 2nd gen part (P2 platform) even though some websites say from 2001 models up to 03 or 07 depending on the engine?

Try FRF Volvo, look up on here in the dealers section (or whatever its called) you'll be sure to get the right OE bit & with forum discount too:thumbs_up:

My old 2002 NA petrol V70 needed one. The only way to be properly sure is via a dealer. My experience here: http://www.volvoforums.org.uk/showth...t=88080&page=2

For my car (which may well be different), the part was "Volvo 9497252 Denso 3323 Japan 010807"

And a local dealer changed ~£280 inc VAT for diagnostics, supply, fit & guarantee.

I put this in my 2.4 non turbo two years ago. Good fuel consumption and no codes. It is the front one. Not the same for the 2001-2002 thought.

They normally work or dont. When not, the light can come on in the cab and the consumption will be bad as go bit rich as an emergency back up.


Ive seen exhaust damage throw Lambda sensor fault codes. ( as oxygen gets to the sensor and so the car adjusts the mixture up and down and a car thinks complete burn cant be reached so throws the code )

That is very interesting, I think I may have a slight leek at the flexi join. However the diagnostic computer showed that there was nothing whatsoever coming from the pre-cat lambda sensor (the graph was flatlining), could that be because of a leak in the exhaust?