J

Jusv76

Member
Hi, my DPF filter full light came on my Velar D300 2018 so I got a mobile company out to clean the DPF. He lifted the bonnet and pumped white stuff into the car for half an hour and then took the car on a test drive for 20 minutes. He returned and the car had lost all its power and it blew the weld open on the DPF and Cat! The white stuff he used had also burst out all over the engine cover. I took the car to a garage and they told me to get a replacement DPF and CAT, which I did. I picked up the car and did 1 mile and noticed smoke coming out from the bonnet so i took straight back, two days later they said it was a exhaust gasket and they said the smoke was just a bit of engine oil at the back of the engine that they couldn’t clean off and this would burn off. I took the car once again and got two miles up the road and the car went bang and killed the car. The car would start, the gear knob was stuck down and all wheels were locked. They recovered the vehicle and took it to their garage where they told me the next day that the engine and gearbox may have broken and that they wanted money off me to do the work. I said that at the start of all this, my car had full power with just the warning light on and since all the DPF cleaning and work the garage had done my car is now dead.
Can someone on here please help me out as to who’s at blame. I fear if the engine and gearbox have blown then it’s probably written off as I can not afford to do any more work. It’s cost me £4000 so far!

Please any advice on what I should do would be so appreciated.
Is the DPF cleaning to blame as he seemed to have caused the pressure to build up so badly that it would blow the weld on the DPF and Cat???

Help me please
Thank you all
 
Jusv76 said:
Hi, my DPF filter full light came on my Velar D300 2018 so I got a mobile company out to clean the DPF. He lifted the bonnet and pumped white stuff into the car for half an hour and then took the car on a test drive for 20 minutes. He returned and the car had lost all its power and it blew the weld open on the DPF and Cat! The white stuff he used had also burst out all over the engine cover. I took the car to a garage and they told me to get a replacement DPF and CAT, which I did. I picked up the car and did 1 mile and noticed smoke coming out from the bonnet so i took straight back, two days later they said it was a exhaust gasket and they said the smoke was just a bit of engine oil at the back of the engine that they couldn’t clean off and this would burn off. I took the car once again and got two miles up the road and the car went bang and killed the car. The car would start, the gear knob was stuck down and all wheels were locked. They recovered the vehicle and took it to their garage where they told me the next day that the engine and gearbox may have broken and that they wanted money off me to do the work. I said that at the start of all this, my car had full power with just the warning light on and since all the DPF cleaning and work the garage had done my car is now dead.
Can someone on here please help me out as to who’s at blame. I fear if the engine and gearbox have blown then it’s probably written off as I can not afford to do any more work. It’s cost me £4000 so far!

Please any advice on what I should do would be so appreciated.
Is the DPF cleaning to blame as he seemed to have caused the pressure to build up so badly that it would blow the weld on the DPF and Cat???

Help me please
Thank you all
Click to expand...
Sorry I meant the car would not start after it went bang
 
Hi, thanks for your reply. I’m not looking for legal advice I’m just wondering what happened to my car. There maybe people on here that may of had similar issues. I’m just trying to understand what happened to my car.
Thank you
 
It "sounds" like your exhaust was blocked and the pressure built enough to split the welds on the cat and dpf........something I've not come across in 55 years of being a mechanic............as to who or what blocked it ...........
 
None of this sounds right to me - I can believe 'a weld blowing open' on something welded by 'Fred in a shed' but not a robot welded DPF & CAT. If the back pressure was high enough to blow open a stainless steel exhaust system - twice, surely it would have stalled the engine or caused issues with the low pressure EGR, which would've flooded the intake with exhaust gases, again, stalling the engine before any issues with the exhaust system?.
Not withstanding the 'white stuff' (which I suspect the OP has been indulging in) this scenario has a lot of questions, least of which is 'who fsked my car?'.
 
Graculus said:
None of this sounds right to me - I can believe 'a weld blowing open' on something welded by 'Fred in a shed' but not a robot welded DPF & CAT. If the back pressure was high enough to blow open a stainless steel exhaust system - twice, surely it would have stalled the engine or caused issues with the low pressure EGR, which would've flooded the intake with exhaust gases, again, stalling the engine before any issues with the exhaust system?.
Not withstanding the 'white stuff' (which I suspect the OP has been indulging in) this scenario has a lot of questions, least of which is 'who fsked my car?'.
Click to expand...
I've heard of cars stalling/failing to start because of too much back pressure from the dpf, but never physical damage.
This white stuff must have expanded faster than the exhaust could expel it. Once one has exploded, the fissure must have sealed again for another rupture to take place?

Did it really happen? Pics?
 
kermit_rr said:
I've heard of cars stalling/failing to start because of too much back pressure from the dpf, but never physical damage.
This white stuff must have expanded faster than the exhaust could expel it. Once one has exploded, the fissure must have sealed again for another rupture to take place?

Did it really happen? Pics?
Click to expand...
Hi, thanks so much for your reply.
Are areas that you can see that have white marks around them is where the stuff he used to clear through the DPF ended up escaping from. You could hear it burst the weld and then you could hear the exhaust gasses escaping from the split welds. It also come out of where the small metal hoses attach. So there must of been so much pressure to break the welds. Problem is I know nothing at all about cars, so they can tell me anything they like. I just hate the unknown as I’m such honest person myself and when I’ve caused a problem at work I’ve always rectified it at whatever cost. I don’t really know what to do because if the gearbox and engine have gone then my cars pretty much written off:( and I have no money to replace the car.
 
Moron said:
For me the biggest mystery is .......WTF has the dpf and/or catalyser got to do with the gearbox
Click to expand...
I have no idea but as soon as I got a mile away the smoke can up from the bonnet and the car locked up. Someone’s done something and not owning up to it. I need to know what these mobile DPF cleaning guys use that they pump through the system? Any ideas ? They put it in under the bonnet and it’s in a stainless cylinder ?
 
Jusv76 said:
I have no idea but as soon as I got a mile away the smoke can up from the bonnet and the car locked up. Someone’s done something and not owning up to it. I need to know what these mobile DPF cleaning guys use that they pump through the system? Any ideas ? They put it in under the bonnet and it’s in a stainless cylinder ?
Click to expand...
These mobile "mechanics" feed a fluid ( usually through the adblu port , after removing the adblu injector)......this fluid is a mixture of a cleaning agent and water ........the problem arises when the egr valve allows the fluid into the engine causing a hydraulic lock, which can destroy an engine ( but not a gearbox), A blocked dpf or cat fault code can often be flagged up by a blocked egr valve cooler ( caused by crystalised adblu), I would strongly recommend taking your car to a Landrover Main Dealer and get the fault diagnosed correctly using dedicated diagnostic tools
 
Moron said:
These mobile "mechanics" feed a fluid ( usually through the adblu port , after removing the adblu injector)......this fluid is a mixture of a cleaning agent and water ........the problem arises when the egr valve allows the fluid into the engine causing a hydraulic lock, which can destroy an engine ( but not a gearbox), A blocked dpf or cat fault code can often be flagged up by a blocked egr valve cooler ( caused by crystalised adblu), I would strongly recommend taking your car to a Landrover Main Dealer and get the fault diagnosed correctly using dedicated diagnostic tools
Click to expand...
How would liquid in a dpf reach the egr valve? The fluid would have to travel backwards against the flow of the exhaust gases which normally blow the fluid out of the tail pipe.
If the exhaust/dpf were completely blocked and the fluid couldn't escape then the engine would stall due to pressure build up
 
kermit_rr said:
How would liquid in a dpf reach the egr valve? The fluid would have to travel backwards against the flow of the exhaust gases which normally blow the fluid out of the tail pipe.
If the exhaust/dpf were completely blocked and the fluid couldn't escape then the engine would stall due to pressure build up
Click to expand...
Through the egr cooler via the egr valve
 
kermit_rr said:
But how does it go uphill against the flow of exhaust gases?
Click to expand...
It doesn't go uphill................its applied through the adblu injector port .........which is uphil as you put it of the egr cooler and egr valve
 
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