How to- Replace the EGR valve on a N47 engine

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Tommo
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How to- Replace the EGR valve on a N47 engine

Post by Tommo » Sun Aug 24, 2014 10:32 pm

After not being able to find much information on how to change the EGR valve on my 2008 N47 engined 118D, I thought I would do a quick write up which will hopefully help some people in the future.


The EGR Valve is located at the front left as you look into the engine bay. This is with the engine cover removed.
Image

You need to remove this pipe(pinch top and bottom and slide off) which allows much better access to the two bolts you need to undo.
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Once the pipe is disconnected, you can disconnect the connector circled in red. Push the spring clip down toward the connector, and remove whilst holding down.
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Once the main EGR connector is removed you can remove the vacuum pipe. Mine was a bit sticky, so a little twist as I gently pulled allowed it to slide off.
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You should now have something that looks like this, and the EGR valve is disconnected ready to undo the two bolts that hold it on.
Image

The two bolts that hold the body of the EGR on are T30 Torx and are undone from the bottom. A small ratchet with a fine ratchet movement will be very helpful here as there really is not a lot of room. Once the bolts were loosened I found it easier to unscrew the bolts by hand rather than with the ratchet.
Image

When the bolts are undone, it is a case of carefully pulling the old EGR valve off and replacing it with the new one. Reverse procedure of the above will have you back where you started in about 10 mins.
Once I got the correct Torx bit all was achieved in less than 20 mins. Hope this is of some help to anyone looking to clean or replace the valve.
Tom

2010 C63 AMG - Milltek cat delete & factory Carbon
2006 130i M Sport - lots of goodies
2008 118d Edition ES with Msport body kit & interior

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marco_polo
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Re: How to- Replace the EGR valve on a N47 engine

Post by marco_polo » Mon Aug 25, 2014 9:37 am

Good work, thank you. :)
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118ddk
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Re: How to- Replace the EGR valve on a N47 engine

Post by 118ddk » Mon Aug 25, 2014 12:47 pm

Do they gunk up on the n47?




/ *L*
118D @ 183hp

/ L

Tommo
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Re: How to- Replace the EGR valve on a N47 engine

Post by Tommo » Mon Aug 25, 2014 12:58 pm

Mine seized and previous owner managed to break the connector on top. I had to replace mine as it was throwing a code.

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Tom

2010 C63 AMG - Milltek cat delete & factory Carbon
2006 130i M Sport - lots of goodies
2008 118d Edition ES with Msport body kit & interior

dal123d
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Re: How to- Replace the EGR valve on a N47 engine

Post by dal123d » Mon Aug 25, 2014 6:32 pm

Good guide!

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Re: How to- Replace the EGR valve on a N47 engine

Post by kenyoned » Tue Aug 26, 2014 6:23 am

Mine has a different style egr, it's black and instead of just one pipe it has two. It's a pain because it looks slightly taller than this one and means I can't actually get the valve past the lifting bracket above.

Caspian
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Re: How to- Replace the EGR valve on a N47 engine

Post by Caspian » Thu Sep 04, 2014 9:13 am

Having done this, its far easier if you remove the air box and turbo inlet pipe first as you are trying to undo the bolts from underneath on the EGR. Mine was covered in Carbon but nothing sticky

elven_4
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Re: How to- Replace the EGR valve on a N47 engine

Post by elven_4 » Mon Feb 23, 2015 5:51 pm

Can anyone find the part number for the black pipe in the second picture please ?

I can't seem to find it on realoem.

Thanks.
2007, 57. 120d M Sport. E87. LeMans Blue. Heated seats.

Tommo
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Re: How to- Replace the EGR valve on a N47 engine

Post by Tommo » Mon Feb 23, 2015 6:47 pm

13717803842 - I'm pretty sure that's the one. I replaced it as well when I changed the EGR Valve. Check with your engine if it is not a 118D N47 as they may be different.
Image
Tom

2010 C63 AMG - Milltek cat delete & factory Carbon
2006 130i M Sport - lots of goodies
2008 118d Edition ES with Msport body kit & interior

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Re: How to- Replace the EGR valve on a N47 engine

Post by elven_4 » Mon Feb 23, 2015 7:02 pm

Thanks a lot. I couldn't find it anywhere. :)
2007, 57. 120d M Sport. E87. LeMans Blue. Heated seats.

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Re: How to- Replace the EGR valve on a N47 engine

Post by Juscallmeweasel » Tue Oct 09, 2018 6:39 pm

Resurrecting an old thread here...

I've just changed mine and idled for a bit. I noticed a burning smell ( like paper on fire) in fact next door came out to tell me they could smell it....
I'm hoping it's just the new valve " bedding in"

I took it for a quick run and everything seems fine

Should I be worried here or does anyone think I'm right with the assumption that it was just the new valve?

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