lambda sensor wiring problem

hi all pretty new to this forum! any help will be greatly appreciated!!!

i took my 2000 Audi a4 B5 1.8 20v facelift into a garage to get the flexi pipe and the cat done, when they were replacing the old one they pulled on something they shouldn't and have now pulled the wires out of the plug that connects the lamba sensor to the car!

this would be as simple as getting a new lamba sensor but they pulled the wires out of the plug on the car end!!

on the plug, its numbered 1 2 3 4 and i was hoping that someone would be able to help with which wire goes where!

just a word of advice if anyone on here lives in my area! DONT GO TO NATIONAL TYRES AND EXHAUSTs IN DORCHESTER, DORSET!!!! there not being helpfull and there only solution was going to a scrap yard to find the plug (which is what i would do) but a new part was ever even mentioned AND they were going to try and make me pay even more money so that they could fix there f**k up!

all this has left me carless for nearly 5 days now :(

Thanks in advance!!
Chris

or if anyone could brave this mercy weather and go check there a4 that would be great,

its the black male plug that plugs into a brown female, i need the wires on the brown side, and its located either just above the coolant bottle or the washer bottle, i cant remember!

Thanks again!
Chris

I am guessing you have an ADR engine?

Car plug pin 1 Red/green to lambda plug white pin 1 from fuse 29

Car plug pin 2 Brown/green to lambda plug white pin 2 from ECU pin 27

Car plug pin 3 Red to lambda plug grey 3 from ECU pin 25

Car plug pin 4 Lilac to lambda plug black/red 4 from ECU pin 26