Erratic instant L/ 100k readings on trip computer

[vsv8berlinawag]

Anyone seen this before ???? At idle and in gear (auto) the instant L/100k's display jumps all over the shop, but once you start driving it reads like it should. It's a new event in the last few months with the wagon so I'm guessing a faulty sensor

[seraphic06]

I think that's normal. For me at idle it doesn't display anything.

[vsv8berlinawag]

I have the wags for around 8 years now and I'm pretty sure at idle it sat at "0.0" though rapidly reaching old age I could be seeing things !

[whitey152]

at idle in gear mine does it to

[_R_J_K_]

Yes, but that's in gear. Does it do it when it's in neutral?

[whitey152]

if you read it he is asking in gear

Anyone seen this before ???? At idle and in gear (auto) the instant L/100k's display jumps all over the shop, but once you start driving it reads like it should. It's a new event in the last few months with the wagon so I'm guessing a faulty sensor

[_R_J_K_]

if you read it he is asking in gear

Yes, but if you read it he also asked if there might be a faulty sensor. I also said "in gear".

[vsv8berlinawag]

I'll let you know.......

[Cobez]

Ummm, you have a level 3 cluster yes? Do you have it set to average per kms, or the other setting? One calculates as you drive depending on speed, one re calculates every 100 km's.

Or do you mean on the normal per 100 km setting it's being erratic?

[GAMBLR]

Being a Berlina Cobez, I'm assuming he has the level 3 cluster, and is referring to the Instantaneous reading. If so, it should read 0.0L/100km if in netural, park or any gear WITHOUT moving. When the car moves of it's own accord (in gear, no foot on brake) OR if you use the accelerator, it'll give you instant readouts of what fuel you are using per 100km.

[Cobez]

Yep, it should read nothing whilst not moving. Even on mine when you have it on the instantaneous setting and you slow down at the lights it drops then when you stop it sits on 0.0L/100km.

[Stressball]

slow down at the lights it drops then when you stop it sits on 0.0L/100km.

Climbs damn high in that last couple of metres before you stop though

[mking]

ive had mine read like 11l/100lkm's sometimes but its only happened like twice when ive been at the lights completely stopped

[vsv8berlinawag]

I'll let you know.......

OK took the wagon out tonight to get some cheap petrol (Adelaide is cheapest Tuesday/Wednesday) and watched the instantaneous display and it goes like this.....
In gear and standing still, it flips between 99.0 and 0.00 L/100kms.
In neutral, it flips from any where between 60 ish to 99 L/100kms.

Go figure

[GAMBLR]

Hmm then my guess would be some form of sensor is worn out. I have no solution though, sorry :P