Re­new­ing a seat­belt ten­sioner

Car Mechanics (UK) - - Mgf & Tf Srs Troubles -

First, dis­con­nect the bat­tery and leave it for 15 min­utes be­fore un­do­ing any plugs. Reach un­der­neath the seat and lo­cate the con­nec­tor plug for the seat­belt ten­sioner, then dis­con­nect it and plug in an­other one. Re­con­nect the bat­tery and see if the re­place­ment ten­sioner ex­tin­guishes the SRS light on the dash­board.

On MGFS and TFS with a square key-fob (pre-53-plate mod­els), the ten­sioner’s plug con­nec­tor should be red. Later mod­els with a round key-fob have a yel­low con­nec­tor.

Re­new­ing a seat­belt ten­sioner re­quires the seat to be re­moved, by un­do­ing the four Torx T50 bolts hold­ing it in place. The seat­belt ten­sioner is held to the side of the seat with a sin­gle Torx T50 bolt. Do not undo the bolt that holds the ten­sioner and seat­belt socket to the mount­ing bracket.

When re­fit­ting the bolt with a re­place­ment ten­sioner, ap­ply a lit­tle thread lock.

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