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  #1  
Old 06-13-2018, 10:41 AM
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Reliability Tips on used 2007 E70 X5 3.0si 7-seat

Hi

We are looking at a used 2007 7-seat 3.0si E70.

Our first BMW, so quite excited (and anxious). It has about 95,000kms (60,000miles?)

1. How reliable are the n52 engines for the long haul? (200,000kms and over)
2. How reliable are the air suspension? What tips to keep it problem free?
3. Any electronics issues that can be prevented through early interventions?
4. It has the Sport Suspension. Is this supposed to be a stronger suspension?
5. Does the panoramic roof disturb (leaks, jamming, etc.. after a long period of use?).
6. There is the rear-DVD screen thingy in the middle. I don't like it. Can it just be easily removed from the car?

Thank you!
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  #2  
Old 06-15-2018, 03:15 PM
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Not sure on the others, #5 - panoramic roof does have issues where the rear glass tips up (press switch up into housing), but it doesn't retract properly. From what I've gathered so far, most elect to just disable the rear tilt up function.
There are kits available online which have the plastic bits if you're so inclined to fix it.

Good luck
Jonathan
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  #3  
Old 06-18-2018, 08:36 AM
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Join Date: Aug 2016
Location: Detroit, MI
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Quote:
Originally Posted by byaru1 View Post
Hi

We are looking at a used 2007 7-seat 3.0si E70.

Our first BMW, so quite excited (and anxious). It has about 95,000kms (60,000miles?)

1. How reliable are the n52 engines for the long haul? (200,000kms and over)
2. How reliable are the air suspension? What tips to keep it problem free?
3. Any electronics issues that can be prevented through early interventions?
4. It has the Sport Suspension. Is this supposed to be a stronger suspension?
5. Does the panoramic roof disturb (leaks, jamming, etc.. after a long period of use?).
6. There is the rear-DVD screen thingy in the middle. I don't like it. Can it just be easily removed from the car?

Thank you!
2. I think very reliable. Rear air bags start failing around 8-10 years and as long as you replace them in time you'll have no problems. The compressor was size for a small duty cycle, just small corrections for if the vehicle is loaded up with stuff, so as long as that's all you ask of it it'll likely last the life of the car. If you DIY, bags were ~$350 and took me a couple hours.
3. I don't think so, I've been fortunate and have zero electrical gremlins so far. Battery replacement would be the only thing, it starts causing oddities long before it'll cause slow starts or anything like that.
4. Define stronger...I'm sure it's stiffer, not sure about stronger.
5. Long period of use? Like leaving it open? I don't think it matters. I think my rear panel is on it's way out. Full open works fine, but vent has issues. I haven't looked at it too much though. No leaks.
6. Probably pretty easy to remove the visible parts. I'm sure there are DIYs for installing one, just reverse it.
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  #4  
Old Yesterday, 08:30 PM
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Join Date: Aug 2015
Location: Toronto, ON
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Quote:
Originally Posted by byaru1 View Post
Hi

We are looking at a used 2007 7-seat 3.0si E70.

Our first BMW, so quite excited (and anxious). It has about 95,000kms (60,000miles?)

1. How reliable are the n52 engines for the long haul? (200,000kms and over)
2. How reliable are the air suspension? What tips to keep it problem free?
3. Any electronics issues that can be prevented through early interventions?
4. It has the Sport Suspension. Is this supposed to be a stronger suspension?
5. Does the panoramic roof disturb (leaks, jamming, etc.. after a long period of use?).
6. There is the rear-DVD screen thingy in the middle. I don't like it. Can it just be easily removed from the car?

Thank you!

#2. Check the Posts about Rear Air Springs - with age and high KM these will sooner or later will start to leak - not an expensive repair and an easy DIY work.

I will suggest to:

- Check if the WaterPump has been replaced, that is a likely part to fail (especially if it has >10 years already). If it fails, you could be stranded and there is an overheating risk which can be costly. This is a very important item, more than anything else. Get familiar with the warning symptoms and the error messages that will appear when fails.

- Check Cooling System; is the original radiator still on? hoses? these could be preventive or to keep an eye on.

- Battery - again, on a 2007, it should have been replaced already.

- I assume you have replaced fluids (Oil, Coolant)

- If you have not or can't confirm if it has been done, Brake Fluid could be long overdue - this one is better to do @ Dealer or reputable shop as it has specific steps to be performed.

Enjoy the car and note that several of the above items are expected regular maintenance items (with the exception the WaterPump)
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