[wooka]

Update - the E22 issues seems to be random clogging. I believe personally that the valve is not designed well!

The engineer has connected a diagnostic laptop.
The SCR routines are running.

Explanation - they're forcing the valve open via the laptop through repeat efforts... I don't see how this valve is not replaced if such issues come up! It's bound to repeat itself.

First, the valve was cooled down. Despite the engine being off for 1.5 hours, it was over 80C. So water was poured on it.

Subsequently the sensor was whacked with an Aluminium spanner ����

Pray, it's clicking away now with the laptop connected. Been 10 minutes. Will post updates as they come.

I'm sure this will be of help to many who face E21/22 issues with their Mahindra vehicles. Do not confuse E2x with E3x. E3x is for low DEF. You can drive the car for up to 3k kms.. With E2x, you only get 800!

Update: we are good to go. This is going to be a repeat issue I'm told. I'll push for a valve replacement anyway once I'm back in NOIDA!

[techfreak]

Originally Posted by wooka

Got the infamous E21 issue today.
This is after a drive from Noida through Chandigarh, Kashmir, and now at Leh.

Ran through a little bit of a watery patch in the hills above the amarnath base camp.. About 1'. Got this error 6 hours later as I was parking in Leh..

Any ideas? Last Servicing was at 9.5k kms... DEF was completely topped up. I'm at 15.3K kms now. Is it an NOX failure pump or just DEF fluid running out?

I'm stuck at Leh thinking about the onward journey to Nubra and Pangong! How much time do I have before E21 goes to E22(800kms left at E2)?

Could anything ruin the show so poorly that I'm totally stuck (no engine ignition allowed)
? I can't find any Mahindra service points on the map here.

I was hit with this problem in my drive to workshop for first service at 800 odd km on Odo. The workshop was some 160 km away from home. Vehicle quickly went to limp mode and speed wouldn't cross 40-50 kmph. Issue was resolved with change of engine coolant temperature sensor and topping up of DEF. But had taken full 2 days to diagnose the issue

But that time (Jan 2021) I grant it to them that the vehicle was recently launched and mechanics had little experience in the vehicle.

Hereon I keep some DEF in the Thar if I am moving out of the city to the wilderness but touchwood no issues after that 1st time.

[wooka]

Not solved! In fact I have never accumulated over 8g of soot mass in the DPF ever, checked ten times over 6 months and 15k kms..

It was 2g in the morning.
It's 71g now.
I was informed that after 37g only the tech team can step in... Standard regen at the facility isn't an option.


It's stunning how this happened.
The car went straight to level 3 DPF failure - blinking DPF and engine light as well. I had barely driven 70 odd kilometers since I took the car from service earlier today.

I never got a chance to do anything. Got back to the workshop at Leh and they're saying it may take days if DPF spares have to be arranged... Days that I do not have!

P. S.
I have not re-fuelled or topped up DEF today.
I am still running yesterday's fuel (resulting in only 2g soot after regular hill travel, so I must be doing something right.)

Originally Posted by wooka

Explanation - they're forcing the valve open via the laptop through repeat efforts... I don't see how this valve is not replaced if such issues come up! It's bound to repeat itself.

First, the valve was cooled down. Despite the engine being off for 1.5 hours, it was over 80C. So water was poured on it.

Subsequently the sensor was whacked with an Aluminium spanner ����

Pray, it's clicking away now with the laptop connected. Been 10 minutes. Will post updates as they come.

I'm sure this will be of help to many who face E21/22 issues with their Mahindra vehicles. Do not confuse E2x with E3x. E3x is for low DEF. You can drive the car for up to 3k kms.. With E2x, you only get 800!

[batish]

Originally Posted by wooka

Not solved!
The car went straight to level 3 DPF failure - blinking DPF and engine light as well.

I never got a chance to do anything. Got back to the workshop at Leh and they're saying it may take days if DPF spares have to be arranged.

So, to summarise DPF does not work properly at high altitude and/or low temperatures and Mahindra has not been able to figure it out yet.

It's disappointing to see MASS not stocking something which has failed in their region in so many other cars. I found many customers complaining about DPF in Ladakh/Spiti region. See.

Even we have a separate thread for this same topic. Link (DPF issues in BS6-compliant cars at high altitude places like Ladakh, Zanskar and Spiti).

[wooka]

Now the situation seems to have devolved into:

1. Yet another sensor (DPS?) differential pressure I think - is malfunctioning. This just so happens to be in the immediate vicinity of the DEF valve that had water poured on it - and that the harness itself was 'hot' to the touch, and so will be replaced as an immediate measure. This is the entire engine harness - a fair bit of work.
2. Then the DPS module *may* be changed.
3. Finally, since I'm well over the 37g soot threshold, they'll then attempt to revive the DPF by driving around in the third gear.
4. Finally (pt. #2) the DPF is to be regenerated if we can bring it down to 37g. Else, New DPF. Since this is a failure of upstream exhaust systems, I expect this to be covered in warranty! Sadly, there is no stock, just amazing.

I wish this were just a DPF issue. This is a failure of a 'rugged model' with poor valves, harnesses, MASS stock management, and just sheer luck!

This just makes me miss my old CRDe. It was bulletproof.

[cool_dube]

Originally Posted by wooka

I wish this were just a DPF issue. This is a failure of a 'rugged model' with poor valves, harnesses, MASS stock management, and just sheer luck!

Hope the issue is resolved soon. I can only imagine the disappointment this would have resulted in, especially while you are on one of the most aspirational drives that a motorhead can embark upon in our country. Do keep us posted. It will be interesting to get a complete RCA on this, if possible.

Originally Posted by wooka

This just makes me miss my old CRDe. It was bulletproof.

Absolutely! Cars are best left simple

[wooka]

So as an update I have received exceptional support from Mentokling Motors and from Chandigarh HQ (CSR side.)

There is a persistent DEF dosing valve issue that two more Thars came in with. E21 /22.

This deserves a recall and a permanent fix. Just whacking the valve with a rod is not okay!

I've driven 100 kms in the hills now including ascending to 5400m (khardung la) and without incident. I'm driving low gears with a focus on hitting 60 wherever possible.

As a PSA, the roads beyond Khardung la are washed out for about 25 kms... Then it gets brilliant again. Hail the BRO!

[NIP]

Originally Posted by swunkjyn

Yes Dada, that is the whole purpose. ...Roof top rack.

I am also highly interested in an 'Overlanding' setup with the exo-skeleton type of frame. This is necessary for a rooftop tent, which I also want to install, along with jerry can holders etc. for longer trips. I would go with Prad for this, as I have faith in their quality of work. Please keep us posted here on your build/progress etc...

Guys any leads to good rooftop tents in India ?! Thanks in advance !!

[shankar.balan]

Will this exo skeleton frame require drilling and welding and all onto the body/ chassis of the Thar?

If yes, will this not compromise the structural rigidity of the vehicle?

Originally Posted by NIP

I am also highly interested in an 'Overlanding' setup with the exo-skeleton type of frame.

[swunkjyn]

Originally Posted by NIP

I am also highly interested in an 'Overlanding' setup with the exo-skeleton type of frame. This is necessary for a rooftop tent, which I also want to install, along with jerry can holders etc. for longer trips. I would go with Prad for this, as I have faith in their quality of work. Please keep us posted here on your build/progress etc...

Guys any leads to good rooftop tents in India ?! Thanks in advance !!

Surely, as of now I have reached out to only two companies. One is Classic Service Point in Noida and they are asking for 7 days to 10 days of time and Vin 4x4 said a weeks time.

What I am surprised is that they do not have pre-ready exoskeleton despite they have added so many over-landing setup to Mahindra Thar 2020 models. As you have pointed out about Prad, will pay them a visit. I was also thinking of Azad 4x4 but I read a horror story and might reconsider them. These are the upgrades I have in mind.

1. After-market Suspension. Arc vs Arka.
2. Upgrading the headlight and the foglamps.
3. Full body roofrack probably an overlanding setup.

I have driven this Jeep for 10000 kms so changing tyres will be expensive for me. The cost I'll get for the current set of tyres will be very less and I am happy with them right now.

[NIP]

Originally Posted by shankar.balan

Will this exo skeleton frame require drilling and welding and all onto the body/ chassis of the Thar?

If yes, will this not compromise the structural rigidity of the vehicle?

This is the first thing I need to figure out as well !!! Even I have my doubts after seeing some setups on youtube etc.

[techfreak]

My Thar went for 3rd Service today.
She is running fine and thought service should be over in a jiffy. But was surprised to see the number of service action pending on my vehicle!!
Though she is running absolutely fine apart from random infotainment system reboot.

Lets see how she feels after the service.

Attaching a copy of the work to be done on my vehicle. The ones highlighted are service action/recalls pending with the red underlined being the major work to be done.

[Pancham]

Another 2020 Thar bites the DPF dust.

What a site for an owner who has been waiting for 9 months to get his dream vehicle and planning a Zanskar trip for 2 years!

So our epic trip to reach Leh through Zanskar comes to an end prematurely. Why? Bhpian Slipstream11’s Thar choked up it’s DPF.

We completed the route (Shinkula- Kurgiak- Purne- Padum- Rangdum) but reached Kargil with the DPF sign and Check Engine light on.

After waiting for around a day and half Mahindra RSA sent a flat-bed to Kargil to pick the car up and send it to Leh. Thanks to them for at least arranging the truck.

But the overall experience has left a bitter taste towards BS 6 diesels and Thar in general. We have been planning this trip since 2020 and the Thar could not make it till the end. It’s like the 2020 Thar is not made for these terrain or rugged conditions. Perhaps it’s better to buy a petrol Thar and use it as a mall crawler.

Now the wait begins to get it fixed at Leh. Fingers crossed.

[wooka]

Team,

A glimmer of hope!
1. My Thar has done about 500 kms since my visit to the MASS at Leh.
2. No repeat of the DEF dosing malfunction (which requires a recall IMHO with its high failure rate) which results in the E21+ errors. Long term, this needs a replacement.
3. Zero DPF issues in my entire ownership barring the DPS connected engine hardness burning issue that resulted in the self regen not working!

This includes hours of 1st-2nd gear work. This covers Leh - Nubra - Pangong - Leh - Sonamarg (Kashmir)

I've done 17k kms in 6 months and the car keeps giving. I am driving a manual and absolutely refrain from keeping below 1500 RPM in the hills. Don't shy away from hitting 2.5-3k rpm depending on how 'tough' the ask from the engine feels.

Meanwhile, whoever gets stuck at Leh, go to Mentokling Motors and ask for Vikram ( chief tech), Jigmet (owner / highly technical), Ravi (hands on guy who will do the real fixing) in this order. Please also copy me ( gaurav14mehta@gmail.com) for any comms to Mahindra over email - I am trying to get the DEF dosing valve recall established. I have personally seen 4 cars come in with E22 issues in two days... Or worse. This includes a scorpio.

Question - was the DPF light blinking as well? Did you get intermediate stages (REGEN indication etc) and can you please send me the DTC codes when you read them through the OBD tool?

[Pancham]

Originally Posted by wooka

Meanwhile, whoever gets stuck at Leh, go to Mentokling Motors and ask for Vikram ( chief tech), Jigmet (owner / highly technical), Ravi (hands on guy who will do the real fixing) in this order. Please also copy me ( gaurav14mehta@gmail.com) for any comms to Mahindra over email - I am trying to get the DEF dosing valve recall established. I have personally seen 4 cars come in with E22 issues in two days... Or worse. This includes a scorpio.

Thanks for the heads up. We are headed towards Mentokling tomorrow morning for the same issue. The Thar is already on its way.