2008 x5 v6 Front Suspension Thrust Rod Bushing and Oil Filter housing gaskets replace

darienyeri · #1 03-26-2018, 02:45 PM

Hello everyone.

I have a 2008 x5 v6 that has less than 40,000 miles on it. It also has 10 year extended warranty for the In-tank fuel (Pump) Delivery Module.

I brought it in to the dealer to replace the recalled airbags, and got the car checked for the misfires and the engine light on.

I just got a following quotes.

Replace all ign. coils and spark plugs for $995
Replace the Front suspension Thrust rod bushings for $709
Replace the oil filter housing gaskets for $705

I'm aware the cost is exorbitant.
So I'm going to DIY the ign. coils and spark plugs and take it to an indy shop for the Front Suspension Thrust Rod Bushings and Oil Filter Housing Gaskets.
I need to do more research but I might do the oil filter housing gaskets myself as well if it's easy enough.

My question is do you think the in-tank fuel pump could be causing the problems for the coils and spark plugs?
I already replaced spark plugs with NGK spark plugs less than 3 years ago and drove less than 10,000 miles on it. I'm surprised they need replacement so soon.
I'm worried that the in-tank fuel pump is malfunctioning and could be be the original cause for misfires.
I'm trying to see if I should push the dealer harder to replace the in-tank fuel pump or not while the warranty is still active.
At my mileage and the age of the car, do you recommend just replacing all the coils and plugs at once? Or do you think I should try swapping them to find the dead coils and plugs, and just replace those for now?

I'd appreciate any insights or advices.

Thank you for reading.

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blakdeth77 · #2 03-26-2018, 02:59 PM

Is this the N52 engine? I did the outer gasket (between the oil filter housing and the oil cooler) myself and it was pretty easy. The inner one where the filter housing attaches to the head is a little tougher to get at but I think the key is getting an E10 swivel socket(?) that will allow you to remove the upper rear bolt without removing the intake manifold.

My oil filter housing leaked oil down the driver side of the engine and in to the alternator and caused that to fail.

darienyeri · #3 03-26-2018, 03:22 PM

Quote:

Originally Posted by blakdeth77

Is this the N52 engine? I did the outer gasket (between the oil filter housing and the oil cooler) myself and it was pretty easy. The inner one where the filter housing attaches to the head is a little tougher to get at but I think the key is getting an E10 swivel socket(?) that will allow you to remove the upper rear bolt without removing the intake manifold.

My oil filter housing leaked oil down the driver side of the engine and in to the alternator and caused that to fail.

Yup it's the N52. I did some research, and it looks like it's not a hard job.
N52 Oil Filter Housing Gasket DIY
Might do more research and try to do it myself.

Nanniepoo · #4 03-26-2018, 04:32 PM

Need more details about the misfire before we can help you. If it happens under hard throttle and is all cylinders yeah it could be fuel starvation. If it's just one cylinder, not that likely. Also swapping coils will only help you with the latter symptom not the first.

You could ask the dealer what led them to their conclusion...I kind of think they're taking a shot gun approach by recommending both plugs and coils.

darienyeri · #5 03-26-2018, 05:19 PM

Quote:

Originally Posted by Nanniepoo

Need more details about the misfire before we can help you. If it happens under hard throttle and is all cylinders yeah it could be fuel starvation. If it's just one cylinder, not that likely. Also swapping coils will only help you with the latter symptom not the first.

You could ask the dealer what led them to their conclusion...I kind of think they're taking a shot gun approach by recommending both plugs and coils.

Just talked to them. I refused the services, and they came back with "only 1 hard fault for the ign. coil #5" . So I'm going to just pick up the car once they swap the air bags, and replace the coil #5 and plug #5 and see how it does.

bmrboi2 · #6 03-30-2018, 08:41 PM

Having the Exact Car a couple years ago....you may want to just pull the intake manifold to replace the gaskets. The thrust arms are simple to do on a lift. The plugs and coils left me with a spitting and sputtering engine. Highly unlikely its the fuel pump.

Jarhed1964 · #7 03-30-2018, 09:17 PM

Shouldn't have to pull the manifold to replace the OFHG and Oil Cooler Gasket. I've replace OFHG on an M52, M52Tu (both on E39's), an M54 (E60), and getting ready to do my E70 also. Pretty straight forward. The worst I had to do was pull the alternators on the E39's and E60. The E70 doesn't appear to need that removed.

https://www.youtube.com/watch?v=IORcQabnoIw

bmrboi2 · #8 03-31-2018, 09:17 AM

Having done this on 4 of my N52's for ease of access, it was suggested not required and takes an additional 10 minutes to pull that plastic manifold....since this is his first time, I made the suggestion.

Jarhed1964 · #9 03-31-2018, 02:04 PM

Quote:

Originally Posted by bmrboi2

Having done this on 4 of my N52's for ease of access, it was suggested not required and takes an additional 10 minutes to pull that plastic manifold....since this is his first time, I made the suggestion.

I'm with ya. Looking at my 2009, looks to be a bit more than 10 minutes, but maybe thats just mine. There is that one bolt on the back that is a PITA with the manifold. I'm going to fight through it like the dude in the video.

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