How to Diagnose and Replace O2 Sensor Lambda Probe on Audi A6 C7 P2237 S1 B1

Part number: 03L 906 262 Q
Length: 650 mm
Socket size: 22 mm
Number of connections: 6
Number of cables: 5
Here is how I've fixed an error code P2237 Positive Current Control Circuit S1 B1. The lambda probe (O2 sensor) went bad at around 160.000 km. This is Audi A6 2.0 TDI C7 4G 2016. It is fairly simple to diagnoze the sensor with VCDS OBD2 scanner and even more simple to replace it, since the sensor sits on top of the engine. All you need is a 22 mm wrench.

[@paulrossiter9567]

Another quality video ....👌

[@zoltanzoltan2535]

szia . jo lett a videod , sokat segitet mit hol kell keresni . van is hozza füzni valom : a villas kulcs az szar megoldas de ha van egy pipa alaku 22 es gyürüs kulcs az szuper . nem kell mindjart a draga szerszamot meg venni eleg a gyürüs kulcsbol kivagni 2 mm ert az elejéből igy a kabelt be tudod bujtatni rajta . a masik dolog en kitakaritotam az oxigen szenzort es 2 szer 10 km mentem vele 3500-4000 fordulaton es tőrőltem a hibat . tőkeletesen mükődik minden . a szenzor takaritasa : kivülről le takaritotam a kormot drotkefevel majd a szenzor fejeet beaztatam ecset tisztito folyadekba egy ejszakara , kőzben raztam is benne had oldodjon a korom belül is . ezt kb 4 szer csinaltam meg es minden szuper let . kőszőnőm.

[@SP-io5mm]

Hi, is it on same place for audi a6 2014 2.0 tdi 140kw? Thanks

[@mihaelkralj5949]

Pozz,
Lambda sonda- presiromasna smjesa..
Cod- p219500.
Da li bi se rijesio problem zamjenom sonde ili moze bti nesto trece?

[@crisiac1]

Hello ! good video and written on your page, after changing the sensor should any adaptation be made? I also want to change it preventively, I know that it is advisable to change it after about 250,000 km ...

[@a4aamirgondal]

Hi, just a question. i unplugged the nox sensor and nothing happened. no error in the dashboard or anywhere is it normal?

[@dentalsolutions1]

can this sensor have a problem without showing an error on diagnose?
but bad fuel economy, increased noxes and check engine light on... a6 c7 2.0 tdi 190kw
on diagnose it is showing different errors in differnt days... first day on dpf, next day no dpf error but on adblue pump...

[@sunkazz]

Could be AdBlue pump and it's sensors. AdBlue pump is commonly faulty on these cars. Also try cleaning DPF -> drive with mid-high rpm for couple of minutes on a highway.

[@vinhtrvn]

Where is the bank 2 o2 sensor for the same car?

[@jameswan670]

Hi. What was the symthomp of the O2 sensor fault?

[@sunkazz]

Bad fuel eco

[@jameswan670]

@@sunkazz thanks! I'm exactly facing problem with very bad fuel eco.

[@cenzura5560]

Ты бы хоть субтитры пустил на русском