406oc.co.uk

Hi its the first time i have owned a diesel its a 1999 HDi saloon and there are a few questions i would like to ask if you can answer them.
I know the turbo works fine can hear it with window down but car is not as quick as i thought it would be mate tells me that if i change fuel filter that could make a difference if it has not been replaced regulary. (any truth in that statement what do you reckon)
Also it has climate control i am going to get it regassed as i do not think it is working cannot see a change in revs when turned on and cooling fans do not operate to cool condensor, on the digital display in the car it starts at 54 what range does your display start at and go upto.
Last thing on the V5 it says its 90 bhp but the insurance company have it on there records as 110 bhp any one else aware of this.
Thankyou for looking and look forward to any answers you may have.

suppose it depends on how old the filter is ... as regards the A/C i had the same
problem when i bought my hdi turned out to be the condensor had packed in and
2 of the pipes were leaking ended up being quite expensive... got my control on centigrade
and goes from 14 to about 25 i think... dont know what to think about the 90/110 thing...
mine is a 110 on the reg document on a sticker inside the front door and from the vin
number when i go to the local stealers

The VIN should tell you whether its a 90 or 110. If the 6th 7th and 8th characters in yours are RHY, then it's probably a 90. If it's RHZ then it's probably a 110.

Another way of identifying a 90 from a 110 is to look under the bonnet and see if there is a 10cm-ish dia air pipe between the plastic engine cover and the rectangular air filter leading to the intercooler by the radiator. If it's there, then you have a 110.

Another way (I think, but happy to be corrected!) is that '99 90's have drum brakes at the rear, while 110's have discs.

Hope this helps.

Be careful when changing the fuel filter, it is advisable to change the filter and canister as one. On higher mileage HDI's you can sometimes see brass/bronze particles from the lift pump in the tank in the bottom of the canister when you've removed the filter. These get mixed up with the fuel so that when you put the new filter back in some of the particles end up on the wrong side of the fuel filter. These particles then kill your high pressure pump and/or injectors.
The filter and canister can be had from Euro car parts for about £30 and only need doing every 24000 miles (if I remember correctly).

On the aircon side, you should hear a clunk when you turn the a/c on and off. If not then the compressor is not engaging. You will then need to get someone to leak test/re gas it (£50-£75 ish). Be prepared though, at that age its usually the condensor that has corroded and you will be looking at a £300+ bill to get it sorted out, well worth it though. This is a very common problem with the 406.

As for whether its a 110 or 90, the best way to check is look for the intercooler, if it has one its a 110, if it doesnt then its a 90.

Fog