Is there a way of testing if DPF regen is still working? XF
Discussion
Is there anyway of testing if the DPF regeneration is still working on a 2015 X250 XFS?
I've just had a new battery fitted and before and after fitting the battery, the mechanic plugged in an Autel scanner and the only fault code that came up was PO52F, a permanent fault with the Glow Plug Module System. He tested all the glow plugs and all were fine so he thinks that fitting a new Glow Plug Module will cure this fault.
There are no warning lights on the car and it drives 100% fine but if the Glow Plug Module isn't working, DPF regenerations won't take place - I haven't noticed a DPF regen for a few weeks. Is there anyway of testing if the DPF regeneration is still working? Even if I take the car on a long run, it may not regen the DPF as it's not as though it happens on every long run. Thanks in advance.
I've just had a new battery fitted and before and after fitting the battery, the mechanic plugged in an Autel scanner and the only fault code that came up was PO52F, a permanent fault with the Glow Plug Module System. He tested all the glow plugs and all were fine so he thinks that fitting a new Glow Plug Module will cure this fault.
There are no warning lights on the car and it drives 100% fine but if the Glow Plug Module isn't working, DPF regenerations won't take place - I haven't noticed a DPF regen for a few weeks. Is there anyway of testing if the DPF regeneration is still working? Even if I take the car on a long run, it may not regen the DPF as it's not as though it happens on every long run. Thanks in advance.
This is the third thread you have started on a related issue. The last advice I gave you is that you verify the meaning of the error code before jumping to conclusions and disappearing down rabbit-holes, because there is good reason to doubt the information from your mechanic.
I also see that you have since asked the same question in three other forums with the same misinformation. As I said before - P052F may not refer to a glow plug error on JLR vehicles. It is a code used by Mercedes (and Chrysler/Dodge vehicles developed when they were under Mercedes ownership) and VAG and your mechanic's scanner is a generic one resolving the code to that issue.
Either pay someone else to check the car using JLR specific diagnostics or take a chance and replace the glow-plug module and check again (however, the lack of a glow-plug warning light on the dashboard is a strong indication this isn't your problem).
I also see that you have since asked the same question in three other forums with the same misinformation. As I said before - P052F may not refer to a glow plug error on JLR vehicles. It is a code used by Mercedes (and Chrysler/Dodge vehicles developed when they were under Mercedes ownership) and VAG and your mechanic's scanner is a generic one resolving the code to that issue.
Either pay someone else to check the car using JLR specific diagnostics or take a chance and replace the glow-plug module and check again (however, the lack of a glow-plug warning light on the dashboard is a strong indication this isn't your problem).
Edited by Evercross on Thursday 5th January 12:27
ked after a bitSome additional thoughts - a 'permanent' fault reported by an XF does not mean that the issue is still present. It just means that the vehicle ECUs will store that fault code until it is actively cleared even if the fault itself is rectified. Some of the systems will clear a fault code if the issue throwing up the fault goes away, or it may extinguish the warning light related to the fault but store the code for future reference.
I scanned my XF using JLR-SDD not long after I got it and it had a series of 'permanent' faults in its memory going back years before I acquired the car, including bulb-out faults where the bulb had obviously been subsequently replaced, and whole raft of faults related to low-voltage that probably co-incided with a battery replacement.
Again, my advice is get some Jaguar specific diagnostics on the car and read the codes - you will get a timeline of when the fault first appeared. It may be a historic fault that wasn't cleared after it was rectified because the person who fixed it didn't know how to or didn't have the tools for doing it.
I scanned my XF using JLR-SDD not long after I got it and it had a series of 'permanent' faults in its memory going back years before I acquired the car, including bulb-out faults where the bulb had obviously been subsequently replaced, and whole raft of faults related to low-voltage that probably co-incided with a battery replacement.
Again, my advice is get some Jaguar specific diagnostics on the car and read the codes - you will get a timeline of when the fault first appeared. It may be a historic fault that wasn't cleared after it was rectified because the person who fixed it didn't know how to or didn't have the tools for doing it.
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