Hey forum.
I have “2715 DME: oxygen-sensor heater before cat. conv., bank 2: activation”
Firstly, which is the bank 2 sensor, front or back?
Secondly, is that the L=570mm or L=990mm part?
Secondly, any tips how to remove/replace, as it looks tight in there with poor visibility?
I have a sensor replacement tool and intend to buy a Bosch replacement.
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Code 2715 - help with Lambda sensors
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- Lifer
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Code 2715 - help with Lambda sensors
2003 Maldives Blue 3.0i auto
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
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Code 2715 - help with Lambda sensors
Pre cat is the highest sensor. Lots of plus gas on it for a few days before you start.
Buy a lambda socket it will make your life easier.
Buy a lambda socket it will make your life easier.
2009 09 Carbon Black Cinnamon E86
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- Lifer
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- Location: North Hampshire
Code 2715 - help with Lambda sensors
Thanks. There are two pre-cat sensors, I want to know which one is bank 2.
I have a lambda socket tool, but the access still looks tight.
I have a lambda socket tool, but the access still looks tight.
2003 Maldives Blue 3.0i auto
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
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- Senior Member
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Code 2715 - help with Lambda sensors
The front cylinders are Bank1 and the rear ones nearest to the cabin are Bank 2, unless someone corrects me
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Code 2715 - help with Lambda sensors
Cylinders are numbered front (by rad) to back (near cabin). Bank one will be first 3 cylinders (i.e closest to radiator). Bank 2 will be the other 3.
So sensor 1 (pre cat), bank 2 will be 990mm. Best to get and replace both though mate.
This is all assuming you have the M54 engine like me. I replaced mine last week with some much needed help from the forum!
So sensor 1 (pre cat), bank 2 will be 990mm. Best to get and replace both though mate.
This is all assuming you have the M54 engine like me. I replaced mine last week with some much needed help from the forum!
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Maldives Blue 2.5i E85
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Code 2715 - help with Lambda sensors
Again, assuming you have the M54 eninge, there's a heat shield on the left. Remove the two bolts and bend that sucker all the way back. This will give you access the side of the engine, down where the sensor is. This is tight, but I managed it. Just make sure you occasionally twise the sensor wires around as you loose the sensor (obviously unplug them first). I found that if I didn't 'guide' the sensor wires around the the same axis as I loosened them, they'd keep spinning back around.
Not sure that makes sense but you'll figure it out when you start!
Maldives Blue 2.5i E85
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- Lifer
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Code 2715 - help with Lambda sensors
Dr. Zed, that’s really helpful thanks. 2.5 Maldives, same as yours .
If you don’t mind me asking what sensors did you go for and where did you get them. BMW are exorbitant, but Bosch seem to be available for about £60 each.
If you don’t mind me asking what sensors did you go for and where did you get them. BMW are exorbitant, but Bosch seem to be available for about £60 each.
2003 Maldives Blue 3.0i auto
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
Previously: Maldives Blue 2.5i manual (its back!) and another, and a Monaco Blue 3.0Si coupe
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- Member
- Posts: 495
- Joined: Thu Jun 11, 2020 12:45 pm
- Location: Swindon
Code 2715 - help with Lambda sensors
I got Bosch mate. Got them from APD in Swindon. Think it was 150 for both? Can't really remember as I traded in an old alternator that I needed to hand back as part of their refurb programme.
There's also two or three zip ties at the back of the engine for that sensor but make sure you cut the right ones so you don't have cables flying around unnecessarily.
Maldives Blue 2.5i E85