Omf - dpf regen light on - B7 Passat TDI

[cru22z]

Is this normal???

I took a 20 mins drive on the M7 on Sports mode, when I get to my destination the light pops-up.
I then drove back on the M7 on Manual mode on 4th gear 3000+rpm constantly on 110+ kph..cops where everywhere lucky
none was paying attention to me. Anyways after I exited the light went off.
Does this mean my car is ok?

Is this light bad? should I only be getting this once??
Any experiences please.

[Transporter]

Get the DPF checked by the dealer, they should also check the DPF pressure sensor.

If you do mainly short trips, make sure you don't use accelerator when necessary, less particles will be generated and your DPF will last longer. The key to successful regeneration is the steady speed, engine at full operating temperature, more than 1/2 tank and 1500-2000 rpm, at least 20 minutes drive. The last time I used sports mode in our Touareg V6TDI regenerating through the hills but kept the accelerator steady.

The ECU will regenerate the DPF approx. every 1000km without any light on the dash.

Abrupt driving = more soot trapped in the DPF

[dopey]

I do a lot of short trips (with the occasional long one) and give my car a bootful pretty much every time I drive it.... no DPF issues to report here. I was told to make sure I do give it a good rev every now and then to help clear the DPF *shrug*

Wouldn't be too worried but call the dealer and ask them whether it's worth getting it checked in case they suspect you've got a dodgy sensor or something.

[Transporter]

I was told to make sure I do give it a good rev every now and then to help clear the DPF *shrug*.

That's good for your turbo and not for the DPF. If you do just one or two hard accelerations per day, that's more than enough to keep your VNT clean.
I do it when driving up the hill.

[cru22z]

Thanks Guys, I'll call the dealer for a check -up. Also i noticed the idle RPM was quiet hight at nearly 1k RPM. Do TDI do this? I normally notice it at around 800 rpm.

[Inego]

Higher idle speed while a regen is occurring. I have a Skoda Scout, and the DPF light comes on a couple of times a year - an immediate run for 20 mins or so keeping it about 2000-2500rpm clears it.

But not dealing witht he issue ASAP results in a blocked dpf, as I discovered within 6 weeks of getting the car.

[cru22z]

what happened after 6 weeks of getting the car?

[Inego]

My car was a demonstrator, from an inner city dealer. DPF light came on around 5 weeks after purchase, and I headed to the dealer, who advised pretty much as per owners manual.....only I didn't do it immediately, thinking that there must be some margin and I would be on the motorway at the weekend.

Anyway, between the Wednesday and the Saturday the DPF went from 54% full to 100% full, and spent 5 days days at the (now ex) dealer toing and froing with Skoda Oz before it was sorted.

I understand that the CR engine has fewer DPF issues than my PD, but the moral of the strory for me was if you see the DPF light on do something about it straight away!

[clip]

but the moral of the strory for me was if you see the DPF light on do something about it straight away!

hmmm, I'm thinking the moral of the story is don't buy a TDI!

With all the recommended driving techniques that are talked about, I'm hardly game to drive the bloody thing now for fear of clogging the damn filter! I like to use the go fast pedal quite often, but at 16000k's obviously I'm going to be suffering the dreaded DPF issue at some point very soon by all reckoning

[h100vw]

I don't think it's such a big issue myself. One might say 'that's easy to say as you can "sort the DPF" ' However, I have seen blocked ones on MK5s at 105K and others no where near half full at 150K. Even a MK6 that had 160K up that was blocked. VW blamed his driving style, Eumundi to Cooper Plains daily on the Highway. What you would expect to be the best place for it???

I would have no problems running one personally. I would however be monitoring the DPF regularly, you can check the state of it (well what the ECU thinks it is anyway) with VCDS.

I'd do the pressure sensor at the first sign of trouble and calibrate it. Then drive it.

Gavin

hmmm, I'm thinking the moral of the story is don't buy a TDI!

With all the recommended driving techniques that are talked about, I'm hardly game to drive the bloody thing now for fear of clogging the damn filter! I like to use the go fast pedal quite often, but at 16000k's obviously I'm going to be suffering the dreaded DPF issue at some point very soon by all reckoning