Hi, I'm wondering if anyone knows what the 4 electrical connectors are situated under the power steering cover, I seem to have a cable that's come adrift somehow, I have an A4 b5 2.8 30v quattro thanks

camshaft position sensor / crank sensor wiring

knock sensors (often routed low on the V6)

A/C pressure switch / related sensor wiring

sometimes secondary air / vacuum solenoid wiring depending on spec

from your pic, that “loose cable” looks like it’s been heat-soaked and possibly pulled out of a connector block or broken off a sensor lead.

common issue on these is brittle insulation + oil/heat damage around the rear of the engine, so wires can just come apart from the plug.

i’d trace it back by hand — don’t just guess and reconnect — because mis-plugging sensors on the 2.8 can cause rough running or no-start. if you can, follow the loom from the firewall side, you’ll usually find where it’s snapped off or unplugged.

Hi, Thankyou for the info I will try and trace it back to its source, I just assumed that the green connector on the left of the picture which is missing a connection was that cable the colours are the same, I have checked in the engine bay and can't see anywhere else it could go but will look again. Thanks again bob