Dash stopped working. So did lots of other stuff..!

[daddyone]

So I'm two days into the new car, Opened up the dash, removed the piano black inserts, air vents and got ready to wire in my dashcam, plug in the bits and pieces for some in car tech. threaded everything through, put it all back together, the only connections I removed were the air vent ones (three of them in total) and the main dash MOST and CAN connectors, both of which are back in, properly inserted and clipped in.

Started the engine, didn't notice at first but the dash wasn't lit up, not speedo and no rev counter.

Drove along a while, noticed no indicator clicking noise but wing mirror lights are flashing. No radio but the MMI screen is working, no phone audio on the car kit and a shitload of faults coming up when I plug VCDS in:

Chassis Type: 4G8
Scan: 01 02 03 05 08 09 10 13 14 15 16 17 19 1B 22 28 30 36 3B 3C
42 44 46 52 53 55 5F 62 65 6C 6D 72 85 8B 8E 8F 90 BA


01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: Malfunction 0010
13-Auto Dist. Reg -- Status: Malfunction 0010
14-Susp. Elect. -- Status: OK 0000
15-Airbags -- Status: Malfunction 0010
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: Cannot be reached 0100
19-CAN Gateway -- Status: Malfunction 0010
1B-Active Steering -- Status: OK 0000
22-AWD -- Status: Malfunction 0010
28-HVAC, Rear -- Status: Malfunction 0010
30-Special Function II -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
3B-Sensor Elect. -- Status: OK 0000
3C-Lane Change -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: Malfunction 0010
53-Parking Brake -- Status: Malfunction 0010
55-Headlight Range -- Status: Malfunction 0010
5F-Information Electr. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: Malfunction 0010
6C-Back-up Cam. -- Status: OK 0000
6D-Trunk Elect. -- Status: Malfunction 0010
72-Door, Rear Right -- Status: OK 0000
85-On Board Cam. -- Status: OK 0000
8B-Adaptive Cruise 2 -- Status: Malfunction 0010
8E-Image Processing -- Status: Malfunction 0010
8F-Pretens. Frt Left -- Status: OK 0000
90-Pretens. Frt Right -- Status: OK 0000
BA-Motor Mounts -- Status: Malfunction 0010

-------------------------------------------------------------------------------
Address 01: Engine
Cannot be reached

-------------------------------------------------------------------------------
Address 02: Auto Trans
Cannot be reached


Now I won't post the rest, but you get the idea - pretty much every module in the car is unreachable and this tells me maybe the CAN gateway itself has gone down. Anyone know about these codes? Is there anything I could possibly have dislodged or unplugged which would cause this? I've done exactly the same in my old car with no issues, once to install and once to remove.

Taken the battery off, cleared all fault codes with VCDS and still no dice. I'm a little bit confused....

[morski]

Is every module showing unreachable? Check the MOST fibre is fully inserted into its own plug and not just what its plugged into. Maybe remove anything you have added in case its causing an issue and check for a blown fuse which is easily done.

[daddyone]

Blown fuse, 5A on the passenger side. I didn't know there are actually three fuse boxes; Driver's dash side panel, passenger's dash side panel and another nestled underneath the RHS cubby hole in the boot where the cigarette lighter is. Anyway sorted now!