SteveFMk1

Rimmers have listed , with a non working speedo, the SRS light will be on so will fail an MOT.

I've had one of Bruce's alarms for around the last 3 years, works very well.

An easy option if it starts nuisance alarming at night, would be to just pull the connectors off the horns, you should still have the indicators flash.

Can't help with machanic's in your area, but any of the mobiles will come to you. Before you buy to many bits, especially head gaskets the head will need to come off first. It all depends on whether the liners are proud of the block, level or they have sunk.

Try some Renovo plastic window cleaner or similar.

One other check while your checking everything Cobber suggested is the hose that goes to the ecu, if you have an air leak that could give the ecu the wrong info on engine temp.

If it's just an earth, could you just use another convenient earthing point.

Might be worth checking the thermostat.

Technical Information:
Thread Diameter (mm): 14
Thread Reach (mm): 19
Hex Size (mm): 16
Gap (mm): 1.1

If you tap in TF owners manual on Google there are several to download on there, inc T Bar.