406 Coupe Speedo Failure

Hi,

today my speedo had a dropout for about 10 sec.
I watch this failure also on a test drive with another car before.

Any known reasons for that?

Kind regards
Joachim Engel

 

Loose electrical connection probably or a failing gearbox sensor. I had it
on a Xantia where it would work normally most of the time then gradually the
failures got worse and worse until it stopped working. I made a note of the
rev counter readings at different speeds fortunately. It shouldn't be an
expensive repair though.

 

had a problem with the speedo needle bouncing with in 5/10mph of actual
speed on my 405,peugeot said it was the gearbox drive and wanted £70 JUST
FOR THE PARTS. local garage said £30/40 all in.on the way home the cable
snapped,new cable fitted,no needle bouncing and now working ok.possibley
caused by kink in cable because moving the cable before it snapped would
slightly cure the bounce.

 

its electronic on a 406 though
used to be a problem with water getting into the connector to the sensor
may be worth a look
also check the earth connection on the gearbox

 

Thanks, guys, for the plausible tips.
Let's see what the garage says.

Kind regards
Joachim Engel

 

I had this intermittent fault on a 406 automatic, petrol model. It turned
out to be the sensor mounted on the gearbox. £25 for part plus labour
although you could fit it yourself.
Diesel models have a box under the passenger dash that can go faulty and
give this symptom this has been discussed a lot in the past.
Robin