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  #1  
Old 07-28-2019, 10:28 PM
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Maintenance for 06 bmw x5

Hey guys


I have a 06 BMW X5 3.0. It currently has 190k on the dash. I was just wondering...what are all the pre-preventive maintenance step that should be done in order to avoid engine failure???
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Old 07-29-2019, 01:58 AM
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This can be a slippery slope. If it runs well now, and it were a purchase I had just made. Here's my list (Note about myself, I am not your typical vehicle owner... I'm a little loony when it comes to maintenance).

1. Seafoam in the current oil (put 300 miles on it with it in the engine)
2. Drain oil and fill with chosen fresh synthetic oil (Liqui Moly for me)
3. Idler pulley and both tensioner pulleys
4. Both belts
5. Water pump/thermostat/expansion tank/almost all cooling system hoses
6. Spark plugs (if no current mis-fires keep current coils)
7. Valve cover gasket if there is any signs of leaking
8. Oil filter housing gasket if there is any signs of leaking
9. Inspect both flex discs on the drive shafts and the center support bearing on the rear
10. Inspect all suspension bushings/ball joints (if anything needs doing, I do it all)
11. Upper and lower intake boots
12. Replace CCV/breather setup

That's it off the top of my head ATM @ 1AM. I'm sure others will chime in with their suggestions.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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  #3  
Old 07-29-2019, 06:54 AM
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Quote:
Originally Posted by crystalworks View Post
This can be a slippery slope. If it runs well now, and it were a purchase I had just made. Here's my list (Note about myself, I am not your typical vehicle owner... I'm a little loony when it comes to maintenance).

1. Seafoam in the current oil (put 300 miles on it with it in the engine)
2. Drain oil and fill with chosen fresh synthetic oil (Liqui Moly for me)
3. Idler pulley and both tensioner pulleys
4. Both belts
5. Water pump/thermostat/expansion tank/almost all cooling system hoses
6. Spark plugs (if no current mis-fires keep current coils)
7. Valve cover gasket if there is any signs of leaking
8. Oil filter housing gasket if there is any signs of leaking
9. Inspect both flex discs on the drive shafts and the center support bearing on the rear
10. Inspect all suspension bushings/ball joints (if anything needs doing, I do it all)
11. Upper and lower intake boots
12. Replace CCV/breather setup

That's it off the top of my head ATM @ 1AM. I'm sure others will chime in with their suggestions.



Hey thanks for the reply I already replaced the expansion tanks cooling hoses, cooling fan, and suspension. I was told I have to service my transmission but, Iím a little unsure if I should flush or just drain the fluids?
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Old 07-29-2019, 06:55 AM
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And also bro....what’s seafoam and exactly what does it do?
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Old 07-29-2019, 09:46 AM
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Here's my regular maintenance items and major repair history to give you some ideas:


On a regular basis:

> Rotate tires, inspect pads & Rotors, CV boots, general look over every 5000 miles
> Oil / Filter change every 8000 miles
> Brake fluid flush every 30,000 miles

> CV Boot replacement generally every 75,000 miles
> Replace belts and clean CCV every 100,000 miles
> Replace differential and transfer case fluid every 100,000 miles
> Replace sparkplugs every 120,000 miles
> Replace expansion tank, coolant and hoses every 150,000 miles
> Replace brake pads every 163,000 miles (Akebono ceramics)
> Replace rotors-once at 63,000 miles (299,000 miles on current Brembos)

> Automatic transmission fluid Ė leave it alone in the GM 5L40-E

My unplanned repairs have included:

> Front axles at 60,000 miles (Prior owner didn't maintain CV boots)
> FSR at 78,000 miles
> Two sparkplug coils and accessory belt tensioner at 124,000 miles
> Alternator at 126,000 miles
> Front driveshaft and transfer case at 136,000 (used a salvage TC for cost savings)
> FSR (again) at 159,000 miles
> Thermostat and OFHG at 176,000 miles

> Front tension struts and pwr steering pressure hose at 192,000 miles
> Rear differential seal at 200,000 miles
> Secondary air pump at 224,000 miles

> Rear suspension bushings and upper control arms at 242,000 miles
> Thermostat (again) at 245,000 miles - at least it was warranty this time
> Steering column double U-Joint shaft at 245,000 miles
> Valve cover gasket at 245,000 miles
> Both fuel tank sending units, fuel pump and canister at 245,000 miles
> Aux fan when the harness got chewed up in the mechanical fan and shorted out at 259,000 miles
> Pre-cat O2 sensors at 260,400 miles

> Water pump at 262,800 miles
> DISA Valve and MAF at 264,000 miles
> Thermostat (again) at 299,000 miles (donít know whatís going on with these)
> Driver door handle carrier again at 310,600 miles (thought they had these fixed finally)
> Intermediate accessory belt pulley at 310,600 miles
> Valve cover (not just the gasket) and OFHG at 317,000 miles
> All spark plug coils, MAF and fuel filter at 342,400 miles
> Third FSR at 347,000 miles
> Fourth FSR & harness connector at 357,000 miles Ė warranty this time
> Engine mounts and rear driveshaft guibo at 357,000 miles

All in all, except for the front driveshaft job that cost $4200, I have really been happy with the vehicle. It doesn't get babied, but I do monitor and maintain it. I think a lot of my good fortune is due to four things: I live in Texas with short winters so I don't have a lot of the CCV condensation problems, my daily commute is 60 miles so the engine oil always reaches full operating temperature, I run the "M" series viscosity engine oil from May through September when I my driving includes 3000 miles of towing a 1400 pound Waverunner and trailer, and I stick with Shell gasoline.



Because of your location, I'd include plenty undercarriage rinses to keep the winter corrosion at bay.


2002 X5 3.0 361,700 miles
2014 428i 64,000 miles


2004 325i sold at 123,600 miles
2001 325i sold at 66,000 miles


1970 Firebird Under restoration - engine dyno run in August
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Old 07-29-2019, 10:23 AM
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Quote:
Originally Posted by Here4bizness View Post
And also bro....whatís seafoam and exactly what does it do?
It's a multi-purpose cleaner. Does oil (added through fill), fuel (added to tank), and valve/intake runner cleaning (added through a vacuum line.) Works really well. I'm doing 2 oil "flushes" with it now on a 530xi wagon I just picked up. Had some bad sludging going on that I noticed when doing the valve cover gasket.

I'd also add to the above list to inspect the axle boots.

As for trans, I'll let someone with a 6 and experience answer that. I have not serviced the ZF trans on my 120000 mile 4.8 yet. When I do though I'll do the seals and rebuild valve body.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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Old 07-29-2019, 12:15 PM
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As far as preventive maintenance to minimize the possibility of engine failure that would primarily be anything related to the cooling system to protect from overheating. Changing the oil and filter with good quality products on a reasonable schedule for your environment is obvious. Be sure the battery and alternator are in good shape as BMW electronics are quite sensitive to out of spec voltage variations. If there is a question you can easily load test the battery and monitor alternator output via the cluster. Use a good quality gas that has a cleaning additive such as Techron.

Check for engine related codes on a regular basis and take care of anything that pops up ASAP.

If your X5 is a necessary daily driver or you will be making long trips there is probably more that should be done. However, a thorough inspection by a well recommended BMW independent repair shop for a second opinion is always worth doing before deciding.
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Old 08-01-2019, 06:44 PM
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Quote:
Originally Posted by crystalworks View Post
I'm a little loony when it comes to maintenance
Aside from Seafoam, BG 44K has a four-part kit that can be bought at BMW. It was recommended to me by one of their mechanics. The oil additive is far more aggressive than seafoam and requires an immediate oil change.

On top of your very good list, these are others things I do when I buy a used BMW, then fall into regular inspection intervals:
Fuel filter
Cleaning tps sensor, inspecting the connectors
Cleaning iacv, inspecting the connectors
Replace all vacuum hoses
Replace cps, inspecting connectors
Replace oil filler cap and dip stick o-rings
Inspect vanos
Replace radiator fill cap
Coolant temp sensor
Oil temp sensor
Brake pads
Brake rotors
Replace any missing clips, bolts, screws, covers in engine bay
Replace intake filter
Replace cabin filters
Clean inside of intake manifold
Clean inside of throttle body

I need to physically see the part in question and make notes that whatever it is has been replaced.
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Old 08-01-2019, 06:51 PM
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I scanned these lists and the only things I would add/clarify

1. Replace the two heater pipes under the intake. Yes it's a pain to remove intake but they are plastic and they deteriorate.

2. Replace fan Clutch - you may have replaced fan, but did you replace the fan clutch?
Use the Behr brand, The cheaper Meyle fan clutch makes too much noise.
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Old 08-01-2019, 07:50 PM
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Seems we're all a little loony for maintenance. I agree with everyone's additions though if it runs well, and throws no codes, I might forgo the vanos inspection. It's nice to skip getting out the timing blocks and such if you can. If the vanos is quiet, the BG/Seafoam treatments will satisfy my vanos requirements. If it makes noise I go for the beisan kit.

On the N52 E60 I saved from the junkyard I am on my second engine flush with Seafoam. BG is definitely faster and more aggressive but with the amount of sludge in this poor engine I wanted to be a little gentler and progressive. Didn't want to knock chunks off and clog something.
__________________
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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