i bought a peogeot 406 hdi it is showing anti polution fault how do i reset it or what could b the cause.?

Answer 1

if your millage is 50,000+ you will more than likley requre a new particle filter and eloys fluid topup this will set you back a couple of hundred pounds when replacing the filter or topping up the fuel additive (eloys) the ecu that controls this will need to be told whats been done this can only be done with the use of a diagnostic computer(peogeot dealer only) but to diagnose the fault you will need to contact your dealer for a diagnostic check. it may come down to a regeneration of the particle filter this is were the diagnostic computer will rasie engine revs to about 4000rpm and get the filter to a high temp at this temp the particle filter will self clean by burning off all particles within the filter

Answer 2

The 406 HDi, or at least some of them, were fitted with a particulate filter system that adds a urea-based liquid to the fuel every now and again to purge the filter.
Chances are your car has run out of this fluid.
Contact your local Peugeot dealer for a re-fill. The parts department should be able to supply the fluid for you to top up, or else you can get the service department to do it for you.

Answer 3

Could be a whole host of things (at the potential age of 11~12 years, oxygen sensors wouldn't surprise me at all).

You don't mention the year, but UNLESS you've got a 1995 (like most mfgrs, they made this model with OBDii from 1996 *onward*), the best way to start is to get the OBDii reading and see which component is being taken to task by the onboard computer. Alternately, you can purchase a decent OBDii reader for less than $100 and have it for future use. Check for the small Actron CP9125 on Amazon -- around $55 delivered.

Answer 4

i don't know much, but usually disconnecting the battery for a few minutes will reset the sensors. If the problem is still there, it will come back. Sometimes the computer sensors are a little too sensitive and not necessarily give "false" indications, but usually with that, it's the oxygen sensor. try that at first, that's what i would do

Answer 5

This means that the emissions are exceeding the required legal limits. This needs to be seen by a mechanic who should be able to cure the problem. There are multiple possible causes for this, but the primary one is that you have brought a piece of diesel powered french junk

Answer 6

Take to your nearest peugeot dealership for expert advice, chances are it will be new air filter or air conditioning fault.

Answer 7

If the vehicle is overheating and misfiring as well, it could be a faulty coolant temperature sensor.