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Old 9th February 2022, 17:52   #76
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

Looking at these issues, I hope all BS6 diesels come with proper warning systems at least. When BS4 came, we thought BS3's engines had better response. Now BS4 is the angel.

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Originally Posted by PrasannaDhana View Post
Not related to cars, but here is the message thrown by my new Swaraj Mazda school bus after which it went to limp mode.
School buses .. guess you are going to see a lot of these. Unless you are able to rotate the routes - and if these routes have sufficient highway type runs. Yes, this one's going to be a pain.
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Old 9th February 2022, 18:18   #77
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

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Originally Posted by oh_maan View Post
However, I am terribly disillusioned by diesel cars now and am tempted to switch out to petrol cars. Since I need a 7 seater, there are not that many options available in the Innova segment.
I had always desired to own a diesel 4x4.
Since 2016 I wanted to own either a Duster AWD, SafariStorme 4x4, Bolero 4x4 Or any torquey diesel 4x4/awd. But as luck would have it, I went on to own the Petrol powered BRV (7seater).
Having read your experience I do not think that it's solely the BS-VI Diesel emission regulations which has bothered you and other owners of BS-VI diesel powered vehicles alike. If you observe closely the BS-4 diesel powered engines were not less notorious in causing maintenance issues for their owners. People known to me who simultaneously while I purchased the BRV they went on to purchase the Duster, SafariStorme, Bolero Or VW/Skoda in the diesel version are having good hell of maintenance issues and equally high maintenance bills at the service centres. As for maintenance costs on my 2017 model petrol powered BRV which has run 47000kms is concerned I haven't spent apart from the consumables like engine oil, filters, brake pads and brake oil.
But the torque of a diesel motor is the cream of driving ecstasy which the driver experiences while driving around mountains, slush or snow.
I wish I could own a torquey diesel motor before the age of EV takes over.
BS-VI Gurkha is one vehicle which I have laid my eyes on, let's see what fate has in store for me.
Regards.
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Old 9th February 2022, 21:15   #78
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

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Had the Adblue warning light on in my Crysta around a few weeks back. Added 5 liters of Adblue a week ago (got it from Shell). The light refuses to go off and the display still shows that I need to fill Adblue at the end of the required kms. Should I add a few more liters and check? Anyone else face a similar situation?
Yes. You need to add more. I had a similar situation. Crysta takes about 10L. With some reserve, you need about 9L to fill it up. The indicator doesn't go with only 5L if you've driven a lot after the indicator comes on.
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Old 9th February 2022, 21:28   #79
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

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Originally Posted by oh_maan View Post
I have a 2020 BS6 Innova Crysta (VXi) (pre-facelift version). I've had DPF issues twice in my car. For about 15K, I faced no issues. My usage pattern is about 70% on highways and 30% on City.
Since it is specific to the Crysta and yours is a manual, I am curious about how automatic regen happens. In my automatic, if the car is driven only within the city, when regen is triggered automatically, it is noticeable through higher engine RPM and increase in fuel consumption for around ten minutes. If the car is in D, the car is eager to creep forward and when I switch to N or P, the idle RPM rises to 1100. Two weeks ago this happened when I reached a point to pick up my dad and I let it continue for five minutes in neutral after which the regen was complete and idle speed dropped to the normal 6/700 RPM. I recorded a video since another friend had asked for the same, you can see the higher idle RPM and FE dropping.



How does this happen in the manual? Have you ever noticed this till now? I think in the manual there is a safety limitation which might prevent increased idle in gear which would not let regeneration happen and thus clogging the DPF.

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Originally Posted by condor View Post
School buses .. guess you are going to see a lot of these. Unless you are able to rotate the routes - and if these routes have sufficient highway type runs. Yes, this one's going to be a pain.
It depends on the manufacturers implementation. In Germany there are diesel vehicles which are used for intra office shuttles which hardly cross 30kmph in their regular use and with a stop go situation similar to our conditions. For these vehicles, the regeneration happens effortlessly, just that the drivers are educated to leave the vehicle running when regen takes place and not to turn it off. However these are automatic vehicles and for manual transmission triggering regen in gear might result in unintended acceleration which in an automatic can be controlled by the transmission.
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Old 10th February 2022, 09:03   #80
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

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Originally Posted by audioholic View Post

How does this happen in the manual? Have you ever noticed this till now? I think in the manual there is a safety limitation which might prevent increased idle in gear which would not let regeneration happen and thus clogging the DPF.
In manual it happens pretty much the same way.

1. Automatic regen - This generally happen when the car has been driven for a while (>40-45min) and the DPF is above a certain threshold. The only way to notice it is a drop in fuel consumption and an increase in idling rpm when we stop. It generally takes about 15 min for this to complete.
2. Manual regen - This is triggered by a switch near the parking sensor button. In normal variants, the ask to start manual regen is accepted only when the DPF levels is above threshold (when the system has given up on auto regen). When the catalytic convertors and injectors were replaced by TKM after the issue, they also rewired this to accept manual regen request if the DPF accumulation is above 30% (when auto regen could have happened). This does help to some extent because if you've had a string of city drives and forsee more time in the city before a highway trip, you could trigger manual regen and avoid a potential case of DPF getting full.
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Old 14th May 2022, 17:39   #81
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

I find this informative video worth sharing


To Mods: Please delete if it is off topic or already posted.
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Old 15th June 2022, 23:51   #82
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Default Re: BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here

Not an owner but read this yesterday on a popular Ladakh FB group about DPF issues in BS6 diesels and he himself faced it in his Tata Yodha.

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DPF ISSUE WITH BS6 CARS IN LADAKH :

All those getting here in the land of high passes by bs6 cars equipped with dpf system must take this into note that your car may stopped running if you continue driving for longer time on hilly roads at low speed after DPF signal flashing.

Be it latest version of toyota innova or mahindra altauraus or kia seltos all had stopped running enroute either nubra Road or pangong Road due to DPF issue and mechanics at my workshop were assigned to get them fixed. Those who had keep driving at lower speed for longer time without regeneration after flashing DPF signal were not getting started as damaged has already caused beyond repair for such vehicle due to silencer choking and toeing were only option left with them. On the other hand those who got alerted with DPF flashing and carried regeneration process was able to keep driving after done with regeneration process.

I had faced this twice with my own tata yodha while on tour. Once 20 days back at koyul enroute umlingla and very recently my driver had to left the same vehicle at taglangla after it stopped when he continued driving even after DPF flashing while going to manali with a rider group.

So guys it's a very serious and common issue with modern bs6 cars getting to ladakh and equipped with DPF and only very few skilled mechanics are available here to cope with such issues.

So guys those getting here by their own personal cars take this into consideration on a serious note and feel free to reach out to me in case any of you gets through such problems while on ladakh trip.
BS6 Diesel Car owners - Your experience with DPF / SCR / AdBlue here-bs6-dpf-ladakh.jpg
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