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Info guides and mods

Replacement Lambda Sensors

What codes you require so you don't have to pay silly smart prices.

Modification Details




Why Aftermarket Sensors?

That's an easy one. Cost. Standard sensors if bought from smart can be extortionate.
It makes more sense to go for the cheaper option which can actually be
exactly the same sensors that you would have bought from smart.

Important

This information relies on specs and information harvested from other sites.
I can only pool this info into 1 place, I can't guarantee the information is correct.

PLEASE CHECK THIS INFO TO YOUR OWN SATISFACTION BEFORE PURCHASING.

450 600cc

Manufacturer : NGK
Part No : OZA659-EE42
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 295mm

Manufacturer : Bosch
Part No : 0 258 006 563
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm

Manufacturer : Bosch
Part No :
 0 258 986 615
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm
Thanks to Michael G for this info.

Manufacturer : Bosch
Part No :
 0 258 005 733
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm

Thanks to Michael G for this info.

Manufacturer : Delphi
Part No :
 ES20312-12B1
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 280mm


Manufacturer : Bolk
Part No :
 BOL-C031818
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 200mm

Manufacturer : Bolk
Part No :
 BOL-C031821
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 200mm



450 700cc

Manufacturer : NGK
Part No : OZA659-EE42
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 295mm

Manufacturer : Bosch
Part No : 0 258 006 563
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm

Manufacturer : Bosch
Part No :
 0 258 986 615
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm
Thanks to Michael G for this info.

Manufacturer : Bosch
Part No :
 0 258 005 733
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm

Thanks to Michael G for this info.

Manufacturer : Delphi
Part No :
 ES20312-12B1
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 280mm


Manufacturer : Bolk
Part No :
 BOL-C031818
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 200mm

Manufacturer : Bolk
Part No :
 BOL-C031821
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 200mm



451 999cc Non Turbo (Not USA)

Manufacturer : NGK
Part No : OZA571-GB1
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 89
Length of Sensor
 & Cable : 300mm


451 999cc Non Turbo (USA)

From what I can see:

The Upstream sensor is a wideband sensor with 5 wires.

Bosch 17444
Walker 350-35076
Denso 234-5071
NTK 24329

The downstream sensor is a narrowband sensor with 4 wires.


Bosch 16749
Walker 350-34360
Denso 234-4881
NTK 25186

451 999cc Turbo

Manufacturer : NGK
Part No : OZA571-GB1
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 89
Length of Sensor
 & Cable : 300mm


451 Diesel

45bhp (non DPF)


Manufacturer : Bosch
Part No : 0 258 017 134
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 350mm

Manufacturer : Metzger
Part No : 0893318
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 375mm

Manufacturer : Meat & Doria
Part No : 81577
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 410mm

54bhp (with DPF)

Manufacturer : Bosch
Part No : 0 258 017 014
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 350mm

Manufacturer : FAE
Part No : 75061
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 350mm

Manufacturer : Pierburg
Part No : 7.02604.44.0
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 450mm

Manufacturer : Vemo
Part No : V30-76-0036
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 350mm

Manufacturer : Metzger
Part No : 0893020
Position : Upstream
Number of Wires : 5
Length of Sensor
 & Cable : 410mm


452 Roadster

Manufacturer : NGK
Part No : OZA659-EE42
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 295mm

Manufacturer : Bosch
Part No : 0 258 006 563
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm

Manufacturer : Bosch
Part No :
 0 258 986 615
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm
Thanks to Michael G for this info.

Manufacturer : Bosch
Part No :
 0 258 005 733
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : 47
Length of Sensor
 & Cable : 300mm

Thanks to Michael G for this info.


Manufacturer : Delphi
Part No :
 ES20312-12B1
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 280mm


Manufacturer : Bolk
Part No :
 BOL-C031818
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 200mm

Manufacturer : Bolk
Part No :
 BOL-C031821
Position : Upstream & Downstream
Number of Wires : 4
Connector Type : None (crimp old connector)
Length of Sensor
 & Cable : 200mm



454 Forfour

Diesel

Manufacturer : Bosch
Part No : 0258017014
Number of Wires : 5
Connector Type : ?
Length of Sensor
 & Cable : 350mm

Petrol

Manufacturer : Bosch
Part No : 0258006566
Position : Upstream
Number of Wires : 4
Connector Type : ?
Length of Sensor
 & Cable : 478mm

Manufacturer : Bosch
Part No : 0258006568
Position : Downstream
Number of Wires : 4
Connector Type : ?
Length of Sensor
 & Cable : 348mm


Jargon Key

Upstream & Downstream

Upstream sensors are positioned between the engine and the catalytic convertor.
Downstream sensors are placed into the catalytic convertor (big exhaust box thing).

Number of Wires

Most lambda sensors have 4 wires which generally indicates that they are standard zirconia sensors. If a sensor has 5 or 6 wires it is usually a wideband sensor. There is a difference of
opinion when it comes to smart lambda sensors, some think think they are wideband, some don't.

Personally I don't think they are wideband.

Length of Sensor & Cable

Exactly that. The overall length, end to end of the sensor. I suppose it's good to know that
once the sensor is screwed into place that the wiring connector will reach the car's connector.

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