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gibbo300

Posted: Tue Aug 18, 2015 4:30 am

Joined: Nov 03, 2013
Posts: 32
Trade Rating: 0
Location: bromley, kent

hi, 206 2.0 litre 16 valve speedo not working. I understand its a sensor rather than a cable so could someone tell me where the sensor is located please.

Edward

Posted: Tue Aug 18, 2015 6:58 am

Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage

On the gearbox. There are a few logic checks to do first. Does the interior light flash if you drive with the door open? If it does this suggests the ECU is getting a signal so the speed sensor isn't the problem. Check the big multi plug behind the bumper. This is a weak spot on the wiring. Does the odometer still work? I.e. does is accumulate miles still?


	2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible.

sloposse

Posted: Thu Aug 20, 2015 6:37 pm

Joined: Feb 11, 2015
Posts: 55
Trade Rating: 0

The speed sensor is above where the offside driveshaft enters the diff housing its a right awkward bugger to get to as well.

Common problem with a non working speedo is when the offside driveshaft is removed and pushed back in it dislodges the drive cog which then traps and breaks it.

Of course a faulty or worn out speed sensor is the first thing to check.

Warning when you remove it the gearbox oil will spill out so be prepared, best to drain it all first then you can put it back in if its not too old.

Once you remove it you can plug it back in and spin the end in a drill and have someone sit in the car to check if the speedo works.

Wiring can rot too. The signal goes directly to the ecu and double backs to the engine fusebox then to the bsi which then gets distributed to allsorts including the abs and even the aircon ecu

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