air bag light on,foxwell diadnostic tool showed fault codes with 2 air bags,1 being seat belt tensioner,the other, a side air bag.the terminal plugs connecting box under the drivers seat uses a 7 mm bolt to pull the connectors together.the bolt screws in to a brass nut fixed in the plastic,this had been overtightened and pulled out of the plastic ,so when seat was moved it worked the connections loose.simply force the brass nut back into the hole,tighten screw while pushing the top of the connecting block untill its fully home,but just gently tighten screw,hope this helps some one out there . job done

Thanks Sid, well found and sorted.

Perhaps you should add 'Fixed' to your title, as in 'air bag light - fixed'. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Hi Sid what I would do is to check the other front seat and put a cable tie through to double secure it, a popular fault with many of today’s cars.

Yes, the airbag light is often (usually even?) a loose connection.
btw never fiddle with the connectors with the ignition on. Danger of setting the whole thing off. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Mines LHD, if anyone moves the passenger seat the air bag light comes on, to turn it of I have to slide the the seat forwards and back a few times quite hard. I assumed loose/dodgy connection, Thanks for this, I'll have a look.