Replacing a dead turbo

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Sergeant
Jul 27, 2017
334
135
0
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335i
I had (at least) one of my aftermarket turbos fail, which was fitted on March 2017.
So now I've sourced some replacements but I'm wondering what other bits need replacing? Can you guys help me out with a list?

So far I think I will change the turbo oil feed and oil return lines (in case of debris and to have new ones).
I will replace the coolant lines
I have the gaskets for the turbos.
I will get some vacuum hose
Is it a good idea to replace the copper nuts and the studs?

So basically get together a turbo install kit like found on ecstuning I guess.

Will have coolant to refill after disconnecting the water pump. Necessary bits for re-attaching the water pump
and the oil for an oil change, plus filter.

I think it's also a good time to change the O2 sensors. Do I do just pre-cat or pre and post cat? I have catless down pipes.

What about the oil pan gasket as well, for the sump?

Thanks
 

Traf

Sergeant
Aug 3, 2017
318
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135i
Why would you change all that ?
Just clean the lines and change the gaskets on them.
Why change the O2 sensors also ? I mean don't over complicate things, you probably don't even need to change the copper nuts.
 
  • Agree
Reactions: E92 420

b4llistic

Corporal
Nov 22, 2018
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BMW N54
EDIT: Thanks your finding and reading my post. Unfortunately, Spoolstreet is no longer a neutral platform where we can have honest discussions on subjects and products freely.
For this reason I have deleted all information I posted on the forums.
 
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Sergeant
Jul 27, 2017
334
135
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335i
Although I could have maybe got away with not doing it, I'm replacing about 35 various parts.

All coolant and oil feed and drain lines. O2 sensors, oil pan gasket. These bits are probably originals on the car for 11 years. So if one of them fails it'd be a real PITA to replace the single bit later
 

JohnDaviz

Sergeant
Jan 6, 2019
355
201
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335i E92 DCT
If the coolant and oil lines are in good shape there is no sense in changing them. Just flush the oil lines to make sure they are clean. Also studs and Nuts which are in good shape.

why do you throw money out of the window?
 

b4llistic

Corporal
Nov 22, 2018
119
90
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BMW N54
EDIT: Thanks your finding and reading my post. Unfortunately, Spoolstreet is no longer a neutral platform where we can have honest discussions on subjects and products freely.
For this reason I have deleted all information I posted on the forums.
 
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JohnDaviz

Sergeant
Jan 6, 2019
355
201
0
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335i E92 DCT
Read the first ten words of my first sentence :)

Check and Decide not just replace.
 

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Sergeant
Jul 27, 2017
334
135
0
Ride
335i
Read the first ten words of my first sentence :)

Check and Decide not just replace.

I'm not the one doing the work.
My car can't just sit in their garage and wait a week for a part to arrive.
So this will be preventative maintenance and I can sell the old parts as used but working
 

JohnDaviz

Sergeant
Jan 6, 2019
355
201
0
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335i E92 DCT
My car can't just sit in their garage and wait a week for a part to arrive.

Seems to be a great shop. When my engine was rebuilt they said if parts are bad they will ask me and order new ones... which take a BMW Dealer 24hrs from order to delivered if not on stock. My Car is a 2009 and all coolant and oil lines were fine and used with my new turbos. All lines are like 200 Dollars or more?
Your money. Your choice. But i would feel stupid changing good parts.
 

Cornfed54

Specialist
Feb 6, 2018
80
31
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E92 335
I’ll be the odd ball and say if you plan to keep the car at least a few more years, it’s silly not to spend $200 to prevent having to pay another 8+ hours labor when one of your turbo coolant lines springs a leak. Lines can look flawless visually but no way around the deterioration caused when a rubber hose is 6 inches away from metal that gets red hot. Oil feed and coolant line failure isn’t common on these but it certainly happens.
Same applies to the copper nuts, they are soft metal and the threads stretch to some degree when tightened. BMW considers them one time use for a reason. Sure you can reuse and they will likely be fine but why risk it for $25?
 

Tedbuildiy

Corporal
Jan 9, 2020
209
40
0
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335i
If you have the money for it, by all means replace lines, but unless they are kinked or damaged there is no need.

GASKETS (ALL OF THEM)
New nuts and bolts for manifold - May as well.
Oil pan gasket for sure, Its easy whilst under there.
And possibly even water pump unless yours is new.
 

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Sergeant
Jul 27, 2017
334
135
0
Ride
335i
I’ll be the odd ball and say if you plan to keep the car at least a few more years, it’s silly not to spend $200 to prevent having to pay another 8+ hours labor when one of your turbo coolant lines springs a leak. Lines can look flawless visually but no way around the deterioration caused when a rubber hose is 6 inches away from metal that gets red hot. Oil feed and coolant line failure isn’t common on these but it certainly happens.
Same applies to the copper nuts, they are soft metal and the threads stretch to some degree when tightened. BMW considers them one time use for a reason. Sure you can reuse and they will likely be fine but why risk it for $25?

Yeah I do plan to keep the car for as long as possible. It's so much fun. Has been pretty reliable for the last 5 years. I decided to do all oil and coolant hoses. Got the old ones as spares which I may sell.
Did lambda sensors, oil pan gasket, serpentine belt, various screws, bolts etc.