F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > EGR Cooler Replacement
Post Reply
 
Thread Tools Search this Thread
      07-20-2018, 07:51 AM   #1
Ttrumpet
Registered
0
Rep
3
Posts

Drives: 320 Efficient Dynamics
Join Date: Feb 2018
Location: UK

iTrader: (0)

Garage List
EGR Cooler Replacement

Hi.

I'm looking for some advice on replacing my egr cooler. I've got a 2012 f30 320ed with about 75000 miles on it. The engine light came on a few months ago so I had it checked out at a local independent bmw specialist. They found the whole egr system choked up with carbon so they walnut blasted the whole intake. They also found a small internal leak in the egr cooler which explains the loss of coolant I've been having. The cars running great now but I do need to get the cooler replaced.
When I've checked the part number for my car it's giving me this: 7823210

However after looking around I've also found this one: 7810751

As far as I can tell the only difference seems to be that the bypass pipe for my cooler is on the outside and the other cooler seems to have it internally I'm assuming given that it has a bypass flap on it.
When I've checked on realoem.com the 7810751 part says it is compatible with my make and year car so I'm wondering if this is an updated part as a few people I've spoken to have said the bypass pipes can break and start leaking exhaust gas into the engine bay.
I ask all of this because the original part for my car is proving difficult to get hold of whereas the other possible cooler is much easier to find, especially a low mileage used one. I could buy a new one for about £500 but I don't plan on keeping the car too much longer so it doesn't make good sense to me to spend a lot on it.

I'm hoping someone can help me out with this before I try it out.

Many thanks. Tom
Appreciate 0
      07-20-2018, 04:10 PM   #2
Cualainach
New Member
0
Rep
8
Posts

Drives: BMW F30 320D
Join Date: Jul 2018
Location: Aberdeen

iTrader: (0)

Quote:
Originally Posted by Ttrumpet View Post
Hi.

I'm looking for some advice on replacing my egr cooler. I've got a 2012 f30 320ed with about 75000 miles on it. The engine light came on a few months ago so I had it checked out at a local independent bmw specialist. They found the whole egr system choked up with carbon so they walnut blasted the whole intake. They also found a small internal leak in the egr cooler which explains the loss of coolant I've been having. The cars running great now but I do need to get the cooler replaced.
When I've checked the part number for my car it's giving me this: 7823210

However after looking around I've also found this one: 7810751

As far as I can tell the only difference seems to be that the bypass pipe for my cooler is on the outside and the other cooler seems to have it internally I'm assuming given that it has a bypass flap on it.
When I've checked on realoem.com the 7810751 part says it is compatible with my make and year car so I'm wondering if this is an updated part as a few people I've spoken to have said the bypass pipes can break and start leaking exhaust gas into the engine bay.
I ask all of this because the original part for my car is proving difficult to get hold of whereas the other possible cooler is much easier to find, especially a low mileage used one. I could buy a new one for about £500 but I don't plan on keeping the car too much longer so it doesn't make good sense to me to spend a lot on it.

I'm hoping someone can help me out with this before I try it out.

Many thanks. Tom
My own car is in the garage getting egr cooler and inlet manifold replaced.at great expense!

For me the cooler was so clogged it resulted in the inlet manifold melting.

No warning light whatsoever.

So my advice would be to change the cooler. Esp as its also leaking coolant.
Do the work youself and you an save a bit of money.
Appreciate 0
      07-21-2018, 04:32 AM   #3
Ttrumpet
Registered
0
Rep
3
Posts

Drives: 320 Efficient Dynamics
Join Date: Feb 2018
Location: UK

iTrader: (0)

Garage List
Quote:
Originally Posted by Cualainach View Post
Quote:
Originally Posted by Ttrumpet View Post
Hi.

I'm looking for some advice on replacing my egr cooler. I've got a 2012 f30 320ed with about 75000 miles on it. The engine light came on a few months ago so I had it checked out at a local independent bmw specialist. They found the whole egr system choked up with carbon so they walnut blasted the whole intake. They also found a small internal leak in the egr cooler which explains the loss of coolant I've been having. The cars running great now but I do need to get the cooler replaced.
When I've checked the part number for my car it's giving me this: 7823210

However after looking around I've also found this one: 7810751

As far as I can tell the only difference seems to be that the bypass pipe for my cooler is on the outside and the other cooler seems to have it internally I'm assuming given that it has a bypass flap on it.
When I've checked on realoem.com the 7810751 part says it is compatible with my make and year car so I'm wondering if this is an updated part as a few people I've spoken to have said the bypass pipes can break and start leaking exhaust gas into the engine bay.
I ask all of this because the original part for my car is proving difficult to get hold of whereas the other possible cooler is much easier to find, especially a low mileage used one. I could buy a new one for about £500 but I don't plan on keeping the car too much longer so it doesn't make good sense to me to spend a lot on it.

I'm hoping someone can help me out with this before I try it out.

Many thanks. Tom
My own car is in the garage getting egr cooler and inlet manifold replaced.at great expense!

For me the cooler was so clogged it resulted in the inlet manifold melting.

No warning light whatsoever.

So my advice would be to change the cooler. Esp as its also leaking coolant.
Do the work youself and you an save a bit of money.
Thanks for your reply. I've actually already had the egr cooler cleaned out by a terra clean guy as that's what we thought was the problem. It didn't remove all the rest of the gunk from the rest of engine though which was the problem.
When I had it walnut blasted they said melting intake manifold is the next problem I could have if I didn't replace the cooler due to super heated coolant getting in there.

I've got all the tools to change it and I've had it off before but not sure which part will fit. Any ideas guys?
Appreciate 0
      07-22-2018, 02:58 AM   #4
Cualainach
New Member
0
Rep
8
Posts

Drives: BMW F30 320D
Join Date: Jul 2018
Location: Aberdeen

iTrader: (0)

Quote:
Originally Posted by Ttrumpet View Post
Quote:
Originally Posted by Cualainach View Post
Quote:
Originally Posted by Ttrumpet View Post
Hi.

I'm looking for some advice on replacing my egr cooler. I've got a 2012 f30 320ed with about 75000 miles on it. The engine light came on a few months ago so I had it checked out at a local independent bmw specialist. They found the whole egr system choked up with carbon so they walnut blasted the whole intake. They also found a small internal leak in the egr cooler which explains the loss of coolant I've been having. The cars running great now but I do need to get the cooler replaced.
When I've checked the part number for my car it's giving me this: 7823210

However after looking around I've also found this one: 7810751

As far as I can tell the only difference seems to be that the bypass pipe for my cooler is on the outside and the other cooler seems to have it internally I'm assuming given that it has a bypass flap on it.
When I've checked on realoem.com the 7810751 part says it is compatible with my make and year car so I'm wondering if this is an updated part as a few people I've spoken to have said the bypass pipes can break and start leaking exhaust gas into the engine bay.
I ask all of this because the original part for my car is proving difficult to get hold of whereas the other possible cooler is much easier to find, especially a low mileage used one. I could buy a new one for about £500 but I don't plan on keeping the car too much longer so it doesn't make good sense to me to spend a lot on it.

I'm hoping someone can help me out with this before I try it out.

Many thanks. Tom
My own car is in the garage getting egr cooler and inlet manifold replaced.at great expense!

For me the cooler was so clogged it resulted in the inlet manifold melting.

No warning light whatsoever.

So my advice would be to change the cooler. Esp as its also leaking coolant.
Do the work youself and you an save a bit of money.
Thanks for your reply. I've actually already had the egr cooler cleaned out by a terra clean guy as that's what we thought was the problem. It didn't remove all the rest of the gunk from the rest of engine though which was the problem.
When I had it walnut blasted they said melting intake manifold is the next problem I could have if I didn't replace the cooler due to super heated coolant getting in there.

I've got all the tools to change it and I've had it off before but not sure which part will fit. Any ideas guys?
Not sure about the part, but my mechanic mentioned purchasing the cooler direct from bmw as there are no aftermarket options.

Although you could try eBay for a used one...

So was the terra clean a waste of time? If you are now looking to replace the cooler?

Finally, with a new erg cooler and manifold, is there any other parts that can clog?
Just wondering of the longevity...or should I sell sooner than later...
Appreciate 0
      07-24-2018, 10:22 AM   #5
n00bkiller944
Private
14
Rep
77
Posts

Drives: '14 328d M Sport
Join Date: Mar 2018
Location: Richmond, VA

iTrader: (0)

Quote:
Originally Posted by Cualainach View Post
My own car is in the garage getting egr cooler and inlet manifold replaced.at great expense!

For me the cooler was so clogged it resulted in the inlet manifold melting.

No warning light whatsoever.

So my advice would be to change the cooler. Esp as its also leaking coolant.
Do the work youself and you an save a bit of money.
I'm amazed this could happen without a warning light or symptoms. That is scary.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 11:13 AM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST