Thread: Dust!!

Defenders are not exactly tightly sealed against dust so I'm not worried about a shortage of fresh air on recirculate.

Our D4 leaks like a sieve from the rear door seals which I have given up replacing. Did the recirculate thing and made it no better and perhaps worse you could see the dust in the cabin. Moved to fresh and fan speed up high and we have the issue almost under control but the interior always has a noticeable and fine dust patina after every trip

So fresh works, sort of, for me

Rob

Even though a good supply of fresh air is used to pressurise the cabin to prevent ingress of dust while moving, dust will accumulate around the tailgate and rear doors which gets sucked inside as the tailgate or door is opened unless a window or sunroof is opened beforehand, although some dust may still fall in or be blown in. The L322 is normally particularly bad for accumulating dust above the upper tailgate which then drops straight into the cargo area, although I have reduced the dust by fitting an air deflector to the spoiler. The D3/D4 is not nearly so bad.

Spray the door seals with lanolin and the dust will stick to it.

Originally Posted by RobA

Our D4 leaks like a sieve from the rear door seals which I have given up replacing. Did the recirculate thing and made it no better and perhaps worse you could see the dust in the cabin. Moved to fresh and fan speed up high and we have the issue almost under control but the interior always has a noticeable and fine dust patina after every trip

So fresh works, sort of, for me

Rob

Our D4 never lets any dust in,and its often on dirt roads.
It is by far the best dust sealed vehicle we have ever had.
And i never worry about what the vent control settings are.

Unlike our last D2a,it leaked dust like a sieve,even after numerous trips to the stealers under warranty,they didn't/couldnt fix it.

Originally Posted by DiscoMick

Spray the door seals with lanolin and the dust will stick to it.

+1
It works pretty well on the rear door of my D2a

Originally Posted by Graeme

Even though a good supply of fresh air is used to pressurise the cabin to prevent ingress of dust while moving, dust will accumulate around the tailgate and rear doors which gets sucked inside as the tailgate or door is opened unless a window or sunroof is opened beforehand, although some dust may still fall in or be blown in. The L322 is normally particularly bad for accumulating dust above the upper tailgate which then drops straight into the cargo area, although I have reduced the dust by fitting an air deflector to the spoiler. The D3/D4 is not nearly so bad.

Agree 100% on the fresh air setting + rear tailgate issues on the 320 / 322. Another trick they will do is if your cabin temperature is vastly out of sync with the A/C set temp it will override your understanding of dust ingress and automatically switch to recirculate in an attempt to reach the set temp and that will start sucking dust straight in. In the bull dust at 40-50 ambient I will gradually reduce the temperature to something the A/C will handle and usually end up with a cabin temp of mid 20's rather than try and have it ice cold. If you stop to open a gate cold air goes out, cabin temp rises and then you will often be on recirc when you set off. I only ever use recirculate when following close or passing in the dust, but much better for you (and your engine) to get out of dust or let it settle a bit.
good luck

Just leave it on 24 all the time and it will be set and forget.