chaz1995
12-12-2020, 08:59 PM
Hi all,
Have spent some time searching on this forum so thought i'd start my own thread. I have a BRD 2.0TDI 170 A4 avant and love it. It's on 173k but in great condition.
Recently I had the oil pressure light and decided to repair it, with guidance and support of a mechanic friend. Reason for doing this was mechanically and visibly there was nothing else wrong with the car, no other issues with the engine etc.
We had the engine out in my garage, did the hex shaft replacement from KMB. Also found a cracked exhaust mani so replaced that and a turbo from a breaker with significantly less play. At the same time also replaced service fluids, filters etc.
*edit: forgot to add - we also fitted a new timing kit + water pump. My mate realigned with previous timing marks. I dont think this is causing any issues otherwise it wouldnt start at all, but it is worth noting.*
We have the engine back in and have had trouble starting. Sometimes it will crank for ages and not ignite, occasionally it starts and runs for 2-3 seconds and cuts out. After significant cranking we get the glow plug light but this disappears after cooling. We thought there would be air in the system so tried bleeding it through with a hand pump. it turns out the replacement filter does not have a one-way valve in it, so for the time being the old filter went in. It was apparent there was a huge amount of air coming through the clear pipe in the post-filter return. It is worth noting at this point that the front of the car was raised on stands for 2-3 weeks with the engine out.... and we didn't think the bung the fuel pipes, so no doubt they all drained back. However, it had been primed with the filter full after all of this. Over the past few evenings we had cranked it so many times and gone through so many battery recharges, we actually burnt through the plastic handles on the jump cables....
Currently have the following codes:
P3102 manufacturer control
P2413 EGR system performance
P2425 EGR cooling valve control circuit open
Obviously the EML light is on and also a steering/DSC light, but i think that's cos we don't have any PS fluid in at the moment.
We are not sure how much of this problem is still with air in the system or is there something else going on, perhaps EGR/ASV valve related or some other sensor? I appreciate it's a bit of a punt asking for advice just based on what i've said, but i'd greatly appreciate some thoughts. I am c. £800 with this repair and would love to have the car running before Xmas.
I've been advised it's tricky to bleed the injectors on a BRD block as they are quite far down, is this true? is it something we should try and do? I realise we should have kept the clear pipe after the filter in to observe any bubbles, so that may go back on. Is there anything I can do as far as EGR/ASV problems? Is it possible one of them could have been mis-installed? At this point i'm totally open to ideas. We tried starting it on easystart and all this resulted in was a lot of flame. Or am I over-thinking it and there is just a huge aount of air present in the lines?
Thanks all,
Charlie
Have spent some time searching on this forum so thought i'd start my own thread. I have a BRD 2.0TDI 170 A4 avant and love it. It's on 173k but in great condition.
Recently I had the oil pressure light and decided to repair it, with guidance and support of a mechanic friend. Reason for doing this was mechanically and visibly there was nothing else wrong with the car, no other issues with the engine etc.
We had the engine out in my garage, did the hex shaft replacement from KMB. Also found a cracked exhaust mani so replaced that and a turbo from a breaker with significantly less play. At the same time also replaced service fluids, filters etc.
*edit: forgot to add - we also fitted a new timing kit + water pump. My mate realigned with previous timing marks. I dont think this is causing any issues otherwise it wouldnt start at all, but it is worth noting.*
We have the engine back in and have had trouble starting. Sometimes it will crank for ages and not ignite, occasionally it starts and runs for 2-3 seconds and cuts out. After significant cranking we get the glow plug light but this disappears after cooling. We thought there would be air in the system so tried bleeding it through with a hand pump. it turns out the replacement filter does not have a one-way valve in it, so for the time being the old filter went in. It was apparent there was a huge amount of air coming through the clear pipe in the post-filter return. It is worth noting at this point that the front of the car was raised on stands for 2-3 weeks with the engine out.... and we didn't think the bung the fuel pipes, so no doubt they all drained back. However, it had been primed with the filter full after all of this. Over the past few evenings we had cranked it so many times and gone through so many battery recharges, we actually burnt through the plastic handles on the jump cables....
Currently have the following codes:
P3102 manufacturer control
P2413 EGR system performance
P2425 EGR cooling valve control circuit open
Obviously the EML light is on and also a steering/DSC light, but i think that's cos we don't have any PS fluid in at the moment.
We are not sure how much of this problem is still with air in the system or is there something else going on, perhaps EGR/ASV valve related or some other sensor? I appreciate it's a bit of a punt asking for advice just based on what i've said, but i'd greatly appreciate some thoughts. I am c. £800 with this repair and would love to have the car running before Xmas.
I've been advised it's tricky to bleed the injectors on a BRD block as they are quite far down, is this true? is it something we should try and do? I realise we should have kept the clear pipe after the filter in to observe any bubbles, so that may go back on. Is there anything I can do as far as EGR/ASV problems? Is it possible one of them could have been mis-installed? At this point i'm totally open to ideas. We tried starting it on easystart and all this resulted in was a lot of flame. Or am I over-thinking it and there is just a huge aount of air present in the lines?
Thanks all,
Charlie