The Speedometer Shows 105 When It's Actually Less Than 90

[omri617 18]

The gearbox is 1.6 BE3 - and i run on 1.9 DKZ

Since I got it , noticed that the speedometer is actually 12-15 km"h more than actual speed.

Measured by a friends car (Audi q5) driving next to each other

Why is that , and How can it be fixed?

Thanks

[DamirGTI 342]

Check which drive cog you have on the end of the speedometer .. for 1.9 should be a red one .

 

D

[omri617 18]

Thanks Damir

What is "Cog" ? Where do i locate it?

[DamirGTI 342]

This (it's from some other car but basically same thing as on 205) :

 

http://www.lrseries.com/resources/user/1cb0fd916f44d68f684380d37aed2f6395e29ef2/FRC3310-SPINDLE-GEAR-SPEEDO-DRIVE.jpg

 

It's down on the gearbox where the RH driveshaft enters the differential , beige plastic housing . Just undo the nut which holds upper part of the speedo housing , and pull up along with the speedo cable still connected .. and you'll see the gear cog on the end .

 

D

[omri617 18]

Aha

so in fact on my car , 1.9 engine with 1.6 gearbox , if i get 1.9 cog , speedometer will be accurate ?

[pug_ham 244 3 Cars]

With a 1.6 gearbox it shouldn't be that far out, all my 1.6 boxes have a red cog as well.

 

There have been some topics about the correct speedo drive cogs posted before, a couple which might help;

 

http://forum.205gtidrivers.com/index.php?showtopic=135985

 

http://forum.205gtidrivers.com/index.php?showtopic=130885

 

g

[omri617 18]

Thanks!