Oxygen sensors

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Davejue1
Joined: Sun 22 Sep, 2013 08:25
Posts: 1249

  Z3 roadster 2.8
Location: Mansfield

Oxygen sensors

Post by Davejue1 » Thu 09 Oct, 2014 12:19

Robert T diagnosed Oxygen sensor 2 was faulty when he plugged into my car at Lotherton. Assuming now this is why my emmissions are so high I am wanting to order a new one. I'm going to get two and change both as I'm sure if I don't the other will fail soon after. I'm struggling to find them on OEM. I have found plenty on eBay but I'd like to compare before buying. I'd prefer OEM if there not a daft price. If anyone could point me in the right direction it would be much appreciated. :)

Cheers
Dave
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"Growing old is mandatory, growing up is optional!"

Jonco
Joined: Sat 04 Jun, 2011 08:24
Posts: 382

  Z3 roadster 1.9
Location: Cheshire

Re: Oxygen sensors

Post by Jonco » Thu 09 Oct, 2014 16:29

Davejue1 wrote:................. I'm struggling to find them on OEM.....
I think they are part 16(11781433071) on here which fits both - maybe another 2.8 owner could confirm http://www.realoem.com/bmw/showparts.do ... g=10&hl=20

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Davejue1
Joined: Sun 22 Sep, 2013 08:25
Posts: 1249

  Z3 roadster 2.8
Location: Mansfield

Re: Oxygen sensors

Post by Davejue1 » Thu 09 Oct, 2014 18:24

Brilliant, thanks very much. :)
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colb
Joined: Sat 05 May, 2012 23:46
Posts: 586

  Z3 roadster 1.8 TU
Location: Newport South Wales UK

Re: Oxygen sensors

Post by colb » Thu 09 Oct, 2014 20:32

Do not waste your cash on ebay pattern parts or universal ones, go for known makes Siemens, Bosh or NGK
Just check pre cat and post cat are the same, some differ between the two the OEM diagram only lists the one at Item 16 but post cat is numbered 17, list dosn't show 17 as listed so they may be the same part number.
Euro car parts will supply named makes, they will seal them in a bag and will not accept returns if bag has been opened.
Might be worth removing them and taking them with you to compare with new ones they come up with.

Colb
Colb
1999 BMW 1.8 Z3
1998 Honda Deauville NT650V

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Davejue1
Joined: Sun 22 Sep, 2013 08:25
Posts: 1249

  Z3 roadster 2.8
Location: Mansfield

Re: Oxygen sensors

Post by Davejue1 » Thu 09 Oct, 2014 21:18

Thanks colb. Was concerned about ebay ones. Bit to cheap at £18. OEM want £150 which I think is the other way! Will check the brands you've mentioned and see if I can find some middle ground. :)

Cheers
Dave
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"Growing old is mandatory, growing up is optional!"

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Robert T
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Joined: Mon 12 Jun, 2006 11:35
Posts: 10010

  Z3 roadster 1.9
Location: Cheshire

Re: Oxygen sensors

Post by Robert T » Fri 10 Oct, 2014 09:30

Try bmminiparts. If they have stock, they are a good bit cheaper for genuine parts.

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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kkkrisss
Joined: Thu 13 Jan, 2011 09:15
Posts: 189

  Z3 roadster 1.8
Location: Munich
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Re: Oxygen sensors

Post by kkkrisss » Fri 10 Oct, 2014 15:04

I think Bosch is the OEM manufacturer, so don't waste money for the BMW stamp only.

Del
Joined: Sat 19 Nov, 2011 18:35
Posts: 2122

  Z3 roadster 1.9

Re: Oxygen sensors

Post by Del » Fri 10 Oct, 2014 16:29

kkkrisss wrote:I think Bosch is the OEM manufacturer, so don't waste money for the BMW stamp only
I agree with Kriss.

Out of interest, opinions differ as to whether or not you should just change them as a preventative measure. In the UK the stance seems to be that if they're not producing an error code then leave 'em in. But in my USA Haynes manual it suggests proactively changing every 50k miles whereas the US Bentley manual says to change proactively every 100k miles :shrug

My own understanding is that their "switching" action can slow over time e.g. 10-years or 100K and so there is no harm in changing - I've changed the single one in my 1.9 and in the following MOT the friendly inspector told be that on their sophisticated emissions equipment it was reading a near perfect 14.7:1 mixture which was good for an old car. :)

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Davejue1
Joined: Sun 22 Sep, 2013 08:25
Posts: 1249

  Z3 roadster 2.8
Location: Mansfield

Re: Oxygen sensors

Post by Davejue1 » Fri 10 Oct, 2014 17:17

I'll look into Bosch then, thanks for the leg up. Mileage wise you could well be right as the cars just turned 92k and is kicking a code up on sensor 2. I'll change both while I'm doing it, seems daft not to really as there's nothing indicating either have been changed. :)

Cheers
Dave
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