Is an increase in fuel consumption a symptom?

[Caddy101]

Hi guys

Recently I've notices an increase in my fuel consumption. I used to average about 9.7 l/100km. Now I'm up to 11.2 l/100km.

Driving style hasn't changed, the only thing that has changed is the weather (winter temperatures). Also I don't live very far from work, about 4 km.

Could the increase in fuel consumption be a symptom of something going wrong?

The car in question is a 2006 323i Exclusive, with 115 xxx km on the clock.

Thanks
:thumbs:

 

[AshG108]

when my consumption went up, it was because the VVT Motor was on its way out...

 

[Caddy101]

when my consumption went up, it was because the VVT Motor was on its way out...

What other symptoms did you have?

 

[abmi0000]

Are you driving EXACTLY the same?

 

[Caddy101]

Are you driving EXACTLY the same?

Yeah, pretty much the same. I haven't developed a habit of racing to the office or anything. LOL!

 

[Whacko]

It might be a symptom of a heavy foot. :rollsmile:

On a serious note, if there is more traffic, your consumption will go up.

 

[abmi0000]

Are you driving EXACTLY the same?

Yeah, pretty much the same. I haven't developed a habit of racing to the office or anything. LOL!

No taxis cutting you off that created a reaction in the right foot?

 

[P1000]

Makes sense, the engine takes much longer to warm up. Warm-up enrichment adds a LOT of fuel - in some cases up to 100%

It will not be so severe if your commute was longer and the engine spent a bigger percentage of its time already warmed up. There is nothing you can do, just be happy that you only need to commute 4km.

 

[AshG108]

when my consumption went up, it was because the VVT Motor was on its way out...

What other symptoms did you have?

- consumption went up
- car was down on power, was a dud
- was a bit rough on idle(not a lot but you could hear it more rowdy)

 

[Caddy101]

when my consumption went up, it was because the VVT Motor was on its way out...

What other symptoms did you have?

- consumption went up
- car was down on power, was a dud
- was a bit rough on idle(not a lot but you could hear it more rowdy)

Will have the codes read. This will show up on a diagnostic, right?

 

[Raybimmer]

interesting , I notice my cold start consumption is heavier than when warm , so temperature must play a role .