Space for secondary battery 300tdi

[recneps]

Hi,

I want to install a split charge + second battery in my 300tdi. In the 200tdi there was a space for the second battery behind the left hand headlamp. The 300tdi has a large air filter which takes up part of this space.

Its a 7 seater which also gets used for transporting equipment so cant really install it in the boot area. Any suggestions on where to put it or how to make space?!

[nicedayforit]

I've seen it posted that to make space you remove the existing 300 air filter box and replace it with a box from a 200.
Then you have room for a second battery.

[paul123]

fitted second battery on a 300 tdi last weekend just removed the plastic pipe from air box to inner wing lots better starting now no problems with airflow

[martini_zupa]

I think removing that pipe will do only good as the air intake level raises a bit. 300tdi air intake is rather low.

[recneps]

I like the idea of removing that pipe - it seems an excessive amount of pipe. But will the lack of pipe mean i need to change the air filter more often?

[discool]

Your engine will suck in the same amount of air with or without the pipe, or do you mean will the air be cleaner or dirter.

[nicedayforit]

Drawing the air from the engine bay means it is potentially warmer than if drawing from under wing. Does this mean that the effects of the inter-cooler are reduced and your engine is drawing in a lower mass of air?

[recneps]

Your engine will suck in the same amount of air with or without the pipe, or do you mean will the air be cleaner or dirter.

I meant is it cleaner / dirtier and therefore will the air filter get dirty quicker