2006 E53 X5 3.0i 100k Mileage Maintenance Advice

[BlackPantherX5]

Hi Xoutpost peeps. I've really enjoyed this site over the past year.

I did a few forum searches but could not find what I was looking for. I apologize in advance if this was already discussed.

I am coming up on 100k miles and would like to determine what specific maintenance should be performed at this time. Any and all advice is appreciated!

- BlackPantherX5

[TheFixer]

If you don't know the maintenence history..... everything.

Front and rear diff fluid change.
Transfer case fluid change.
Transmission fluid and filter change.
Cooling system refresh.
Replace any leaking oil gaskets.
Spark plugs
Fuel filter
Inspect cv boots
Replace engine mounts
Serpentine bent
Tensioners and pulleys

All these things regular people tend to neglect until it breaks.

[andrewwynn]

Disa valve, oil filter housing gasket.

[EODguy]

Suspension refresh to include the strut bearings (? term) above the shock towers, check roof drains and brakeline inspection and don't forget the transmission mount.

Sent from my SM-A730F using Tapatalk

[Effduration]

In addition to above, please take a peak behind the plastic cladding underneath the driver's side door and look at brake lines...They are likely rotted at one junction under the drivers door.

You don't have to pull all plastic off to look..Just pull a few rivets/screws and take a peak with a flashlight.

[X5chemist]

Welcome to the site.

Originally Posted by TheFixer

If you don't know the maintenence history..... everything.

Front and rear diff fluid change.
Transfer case fluid change.
Transmission fluid and filter change.
Cooling system refresh.
Replace any leaking oil gaskets.
Spark plugs
Fuel filter
Inspect cv boots
Replace engine mounts
Serpentine bent
.

Fan and clutch if equipped. Control arms and ball joints. Spline front spacer.

All the above for sure. I bought mine at 143k miles. I'm now finishing up the last. I did the oil filter housing gasket as the most important. If it's not leaking, do the most important stuff first. Or easiest.

[BlackPantherX5]

Thanks a lot everyone, your posts are very helpful. I do know the history since this was a family car and I am the 2nd owner. My step-mom gave me a handful of receipts, and I assume she did her best to keep up on maintenance, but after skimming thru them to bounce off what you all listed here I noticed that 1) Many of her receipts were from the dealer, during the warranty period, and cosmetic or noises she heard that she didn't like...simple stuff/non-issues and 2) Some of the receipts for more major things have text and codes that I am unable to easily translate. So I will spend some time this weekend going line by line to get an idea of where I stand at this time.

[Bdc101]

That's a great idea... just put it into a spreadsheet and organize with a column for date and mileage, so that it's easy to sort. Even if you don't know what the code means, still put it on the sheet and look it up later. Might take a while but it'll save you time and money down the road.

[X5chemist]

Spreadsheet data as suggested. Date, miles, code, part number, source, cost, and comments. It's how mine are set up. For items not done yet, set them up for specific miles due by. Items completed will easier to search on a spreadsheet.

[semcoinc]

Originally Posted by TheFixer

If you don't know the maintenence history..... everything.

Front and rear diff fluid change.
Transfer case fluid change.
Transmission fluid and filter change.
Cooling system refresh.
Replace any leaking oil gaskets.
Spark plugs
Fuel filter
Inspect cv boots
Replace engine mounts
Serpentine bent
Tensioners and pulleys

All these things regular people tend to neglect until it breaks.

My engine mounts appear to be fine at ~138K miles but I would add brake fluid flush. For this I use Motul 5.1 synthetic brake fluid.

I would also add changing all main coolant hoses.

Mike