scumspawn

Looking at your info your soot loading is 44 grams and you should have had warning from 24 grams. From how your indications came up it could be that your G450 differential pressure sensor could be faulty, need to buy a new one and adapt using VCDS before staring the engine again. I have attached a picture which shows when the different indications should be received and at what soot loading. Regen2.bmp

Hi, This is procedure for the pd engine and should be followed for a new sensor only, I have seen a comment from a tech that used sensors do not respond. You do not need to do a forced regen after replacing the sensor, you just need to adapt the sensor with the ignition on and the engine off. In VCDS you need to do the following: [select] [01 - Engine] [Coding-II - 11] Start Exhaust Pressure Sensor (G450) Adaptation 30605[Do It!] Tim

Hi Andy, I found myself also wanting to know this type of info. Some basic info is in the attached text document attached and more info can be found in the VW self study pdf at http://www.volkspage.net/technik/ssp/ssp/SSP_336.pdf. Did try to attach this pdf but the file was too big. Hope this is of help. Tim DPF_regen_info.txt

Yes you can tell the ECU that a new DPF has been fitted with VCDS. Go to 'Engine Control Module' then 'Adaptation'. From the drop down menu chose 'Carbon Mass' and follow the instructions. Hope this helps. Tim

Hi, have seen your post in the other thread. For the 1.6tdi think you may need the 059 906 051C sensor, which may explain why the sensors look different. Try http://www.ebay.co.uk/itm/GENUINE-VW-SENSOR-PART-NUMBER-059906051C-/380941072757?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item58b1db7975 they should confirm if its for your engine. Hope this helps, Tim

Still worth checking the G450 sensor. I believe from other posts that if the DPF is removed, the pressure sensor is still required to give a signal, even though the regen cycle is programmed out. I'm sure I will be corrected if I'm wrong. Tim

DPF's do have a limit on soot capacity of 60g maximum, garage should of able to check the ECU to check your soot reading. But also could be the DPF diff pressure sensor on its way out, easy to replace but needs to be adapted to the ECU (need VCDS). Tim

Hi, could just be the G450 exhaust pressure sensor which is ~£50.

Hi, You do not need to do a forced regen after replacing the sensor, you just need to adapt the sensor with the ignition on and the engine off. In VCDS you need to do the following: [select] [01 - Engine] [Coding-II - 11] Start Exhaust Pressure Sensor (G450) Adaptation 30605[Do It!]

Hi info was from the files attached. One file is a VCDS file for the BMN (PD engine) which lists all the field and block info and the other is DPF regen info from VAG. 170pd.txt DPF_regen_info.txt

In VCDS check field 68 block 2 (in VCDS measured values in engine) gives you the level of blockage of the filter (ash mass). For the BMN engine 60 grams is the max. Feild 75 block 3 will give you the soot loading. The soot loading will give the following sequence: Operating Status System Response 45% DPF Load Level 1 - Normal Regeneration 50% DPF Load Level 2 - Regeneration at maximum exhaust temperatures 55% DPF Load DPF lamp Regeneration from 60 km/h onwards ("See operating manual") 75% DPF Load DPF, SYS and MI lamp Torque limitation, EGR deactivation, Regeneration via VAG tester only 95% DPF Load Replace the DPF Unit Hope this helps.

Because you don't have a fault code does not mean that the DPF sensor is not faulty. Worth getting the car scanned or someone with VCDS to check the readings from it. Tim

Hi, just checked my invoice when I changed mine a couple of months back and can confirm that that is the latest version. Tim

Hi,

I only pay £170 tax for my 2008 VRS pd TDI, so same as the CR.

Hi, there is a good chance that it is the G450 differential pressure sensor that needs to be replaced. There are a couple of recent threads above this worth reading to confirm. Not too expensive to resolve ~£55 for the sensor but will need to be adapted byVCDS or VAS after fitting. The DPF is regenerable up to 95% by a forced regen before the DPF needs to be replaced. See below for information from VW: VAG DISESEL PARTICULATE FILTERS Courtesy of David Bodily Volkswagen Technical Support Specialist Diesel Particulate Filter (DPF) Detailed below is important information outlining the function and features of the Diesel Particulate filter which all members of your team need to be aware of. Diesel particulate filters are becoming more commonplace on diesel engines, particularly sizes 2.0L upwards. This is in order to reduce the exhaust emissions as required by European legislation. The prime reason for a DPF is to reduce particulate matter entering the atmosphere. Particulate matter is found in the form of soot, which is produced during diesel combustion. The DPF traps most of the soot which would normally travel down the exhaust and into the atmosphere. The DPF can hold a certain amount of soot, but not a huge quantity and therefore it needs to go through a process called ‘regeneration’ in order to clear the soot loading. When the soot goes through a ‘regeneration’ process it will be converted to a much smaller amount of ash. The ash is non-removable. There are two types of ‘regeneration’, passive and active. During long motorway journeys, passive regeneration will occur. This needs no intervention from the engine control unit. Due to the raised exhaust temperatures on a long journey (temperatures between 350 and 500°C), the procedure occurs slowly and continuously across the catalytic-coated (with platinum) DPF. The catalytic-coated DPF is situated close to the Engine, therefore the exhaust gas temperature is high enough (500°C) to ignite the soot particles. Due to this soot is burned-off and is converted into a smaller amount of ash. Active ‘regeneration’ is when the ECU intervenes when the soot loading in the DPF is calculated to be 45%. The procedure lasts for about 5 – 10 minutes. Specific measures are taken by the ECU to raise the engine exhaust temperature to above 600°C, these include switching off the exhaust gas recirculation and increasing the fuel injection period to include a small injection after the main injection. The soot particles are oxidised at this temperature. The ECU will trigger a regeneration process, if for some reason this is aborted, ie. customer slows down, stops etc, the process will be resumed when regeneration conditions are once again met, above 60km/h (38mph). This will continue for 15 minutes. If after 2 attempts of 15 minutes, a successful regeneration has not been possible, the loading will increase. At 50% soot loading, the ECU will continue to maintain maximum exhaust temperatures of 600°C to 650°C to cause a regeneration process. The system will try to run a regeneration process for 15 minutes. If unsuccessful, the system will repeat this process for a further 15 minutes, if still unsuccessful, the DPF light on the driver display panel will then be lit. The owners handbook states, the DPF symbol lights up to indicate that the diesel particulate filter has become obstructed with soot due to frequent short trips. When the warning lamp comes on, the driver should drive at a constant speed of at least 60 km/h for about 10 minutes. As a result of the increase in temperature the soot in the filter will be burned off. If the DPF symbol does not go out, the driver should contact an authorised Volkswagen repairer and have the fault rectified. At 55% soot loading the DPF light is lit on driver display panel. At this point the customer should follow the advice in the handbook. If they ignore this information and continue driving the vehicle until the soot loading reaches 75% without successful regeneration, additional warning lamps will light up. At this point the customer will also be complaining of lack of power, etc. At 75%, regeneration is still possible with the use of the VAS tester. Only when the loading is above 95%, is it necessary to replace the DPF unit. Operating Status System Response 45% DPF Load Level 1 - Normal Regeneration 50% DPF Load Level 2 - Regeneration at maximum exhaust temperatures 55% DPF Load DPF lamp Regeneration from 60 km/h onwards ("See operating manual") 75% DPF Load DPF, SYS and MI lamp Torque limitation, EGR deactivation, Regeneration via VAG tester only 95% DPF Load Replace the DPF Unit The Warranty department has confirmed that if there is no fault on the vehicle and DPF regeneration has been unsuccessful due to the customers driving style and the customers failure to comply with the instructions in the handbook, DPF replacement will not be paid for by warranty. Common causes for complaint • Frequent short journeys – Regeneration conditions are not met. Not recommended for sale in the Channel Islands and inner city driving. • Customers who continue to drive the vehicle with DPF light on – Continued driving with the DPF light on and without successful regeneration results in excessive soot loading of the DPF, to a point where it is above 95% loaded. At this point regeneration is not an option and replacement of the DPF is necessary. • Fault 18434 particle filter bank 1 malfunction – Common fault code. This does not only relate to the DPF itself, but the entire exhaust gas handling system. This can be caused by defective temperature sensors, pressure sensors, additive system components (if applicable), poor connections, wiring issues, etc. Important Information • Before diagnosing a problem vehicle or attempting to perform an emergency regeneration, it is important to obtain a full diagnostic log and read out relevant measured value blocks. These MVB’s contain important information on the condition of the DPF system and are essential in diagnosing the fault. When the DPF light is illuminated, it does not necessarily mean that the DPF requires regeneration. For further advice, please contact Technical Support with the information from the diagnostic log and MVB data. • If a problem vehicle arrives with the DPF light, the engine management light and the emissions light on. If during your diagnosis and reading of relevant MVB’s, you find that the soot loading exceeds 75% (but is still below 95%), an emergency regeneration procedure must be performed with the VAS tester. Further to this, the customer needs to be educated. They need to understand why the lights have appeared on the dash panel. Their attention needs to be brought to the owners handbook instructions, so that they are aware of what the DPF light means and what to do when it appears. This should prevent unnecessary repeat visits for regeneration purposes. David Bodily Volkswagen Technical Support Specialist

Hi, In VCDS Select Control Module, go to 03 ABS Brakes, then 10 Adaptation, go to Channel: Channel 36 XDS There are 3 settings 0-center (stock setting) 1-weak 2-strong Hope this helps, Tim

Hi found this web site when I was after some, http://www.zakparts.com/shop/category_2/CLICK-HERE-for-Wheel-Nut-_-Bolt-Caps.html?shop_param=cid%3D%26. Hope this is what your after.

Hi, for the Octy the update was a recall 24K5, which I belive was a new sensor (G450) and the ECU was updated with new software to cope with the sensor different response and a slightly different engine map. Best to check for the recall sticker in the boot (next to the spare wheel) near the car options codes. Tim

Think this is what your after: [select] [01 - Engine] [Coding-II - 11] Start Exhaust Pressure Sensor (G450) Adaptation 30605.. [Do It!]

Andy, just had a look at the coding and it looks OK compared to mine, but it think it may be useful to put your full scan on the forum incase you have other control modules installed (eg tow bar) . Tim

Hi, it is fuse 36, in the fuse carrier behind the end panel on the drivers side (see manual page 288) to gain access. Tim

Hi, the first fault could be the easiest to fix, worth checking the fuse for the head-lamp washer as I had exactly the same fault with mine. Worth asking others for the coding for the CAN gateway. Tim

I have had a similar issue with my vRS over the last 3 months. The dealer tells me I have a fault indicatted on the glow plug relay and faulty glow plugs 1 & 3. The relay and plugs have been replaced, a new battery was put in, and at the last visit, an area engineer put an additional earth on the car. But the problem still exists and SUK know of my problem, but I am still waiting for a solution. Has anyone else had thier problems fixed yet ?