Auto Express's reliability ratings are based on our Driver Power survey of over 30,000 car owners. Ratings are the average for all owners of this car who responded. Individual owners’ ratings and comments appear below.
08-reg Diesel, Owner for 1 to 3 years

I have the twin-turbo Sport model which is staggeringly fast for such a large 4x4. I marked the ride down as this is really its only major fault - particularly in town. But on the open road the handling & steering is 1st rate, as is its refinement. The only constant niggle I've had with it is a rattling tailgate. Interestingly this was also a problem on both Mark 1 X5s that I've had and a current 5 series estate. And the BMW garage "fix" lasts about 10 miles..... They need to take a leaf out of (prevous subsidiary) Land Rover's book to sort this out...

Reliability: 4/5 Build Quality: 4/5
05-reg Diesel, Owner for 3 to 5 years

No so much the Ultimate Driving Machine as the Ultimately Unreliable Machine!! This car has had nothing but problems but I suspect the lask of technical ability within all out local BMW Dealers plays a large part in this. They simply do not know how to fix things. So far this car has had Oil Pressure Sensor, 2 electric mirrors, starter motor, power steering hoses, sunroof repair, numerous electronics fautls all looked at and repaired/replaced and it has not even done 42,000 miles yet!!

Reliability: 1/5 Build Quality: 5/5
06-reg Petrol, Owner for 3 to 5 years

An excellent car that has given me saloon car perfrmance in an good family SUV. The X5 is very well put together & retains all the great solide build qualities expected from BMW. My only reason to consider a change is we need a 7 seater so will be looking at the new X5 7 seater.

Reliability: 5/5 Build Quality: 5/5
05-reg Diesel, Owner for 3 to 5 years

Not exactly the Ultimate Drving Machine given the poor reliability of this one. The electrics seem to be the major issue and Dealers don't seem to be any good at diagnosing the problem properly meaning multiple visits - in my case 8 before the problem was correctly identified

Reliability: 2/5 Build Quality: 4/5
2006-reg Petrol, Owner for 3 to 5 years

This is my second x5 and we both cars I have never experienced any major problems. its reliable and as I have 3 young children the room is great, drivability is excellent and for sheer enjoyment its priceless. She is petrol need I say more.

Reliability: 5/5 Build Quality: 5/5
2009-reg Diesel, Owner for 3 to 5 years

Car has never let me down but a few small problems that I have chosen to have fixed immediately rather than wait for the next service. Highg labour costs of london bmw franchise dealers & relatively expensive parts.

Reliability: 4/5 Build Quality: 5/5
04-reg Diesel, Owner for More than 5 years

Loved the car but the faulty suspension shouldn't cost as much as it does to fix; not that they have fixed it yet. in 3 times and a bill of £2700 so far but the problem is still not resolved.

Reliability: 2/5 Build Quality: 2/5
57-reg Diesel, Owner for 1 to 3 years

It's one of those cars - a new problem every other month (always eventually fixed under warranty) - the local dealer has no idea - i now use an excellent dealer 100miles away!

Reliability: 2/5 Build Quality: 2/5
2005-reg Diesel, Owner for 3 to 5 years

One problem (quite expensive) since purchase, otherwise everything perfect. Fuel costs good for a big car. independent garage service costs reasonable. parts very expensive.

Reliability: 5/5 Build Quality: 5/5
2010-reg Diesel, Owner for less than a year

The only problem is the washer reservoir is located in the wing and as such requires significant work ( and cost) to clean it. Very reliable and economic given the size.

Reliability: 4/5 Build Quality: 5/5
02-reg Petrol, Owner for 1 to 3 years

Not as reliable as an older BMW used to be, performance is however good and it fulfills its purpose.

Reliability: 3/5 Build Quality: 4/5
51-reg Diesel, Owner for 1 to 3 years

Excellent car but it has not lived up to my perceived quality and reliability of BMW.

Reliability: 3/5 Build Quality: 4/5
2007-reg Diesel, Owner for more than 5 years

I have had no problems. I use bp and have also used ultimate every 500 600 miles.

Reliability: 5/5 Build Quality: 5/5
2007-reg Diesel, Owner for less than a year

No problems encountered. This type of vehicle has higher running costs.

Reliability: 4/5 Build Quality: 5/5
04-reg Diesel, Owner for 3 to 5 years

Super car that when driven gives off a sense of well being.

Reliability: 4/5 Build Quality: 5/5
2012-reg Diesel, Owner for less than a year

No problems to date. Very reasonable for the size of car.

Reliability: 5/5 Build Quality: 5/5
2010-reg Diesel, Owner for 1 to 3 years

Never had problems. High cost of diesel and low mileage.

Reliability: 5/5 Build Quality: 5/5
05-reg Diesel, Owner for 3 to 5 years

Reliable, comfortable, rugged, good load carrier, safe.

Reliability: 5/5 Build Quality: 5/5
2011-reg Diesel, Owner for 1 to 3 years

Never had any problems.. Tank full every3 to 4 weeks.

Reliability: 5/5 Build Quality: 5/5
2012-reg Diesel, Owner for less than a year

No problems. Do not do alot of miles so ok. Nippy.

Reliability: 5/5 Build Quality: 5/5
2005-reg Diesel, Owner for 1 to 3 years

Small faults mainly. Big car so high costs.

Reliability: 3/5 Build Quality: 4/5
51-reg Diesel, Owner for 1 to 3 years

great car but costly to run and maintain

Reliability: 3/5 Build Quality: 3/5
08-reg Petrol, Owner for 1 to 3 years

very reliable and excellent to drive

Reliability: 5/5 Build Quality: 5/5
56-reg Diesel, Owner for 1 to 3 years

DOES WHAT IT SAYS ON THE TIN!

Reliability: 5/5 Build Quality: 5/5
59-reg Diesel, Owner for Less than a year

quality car

Reliability: 5/5 Build Quality: 4/5
56-reg Diesel, Owner for 1 to 3 years

excellent

Reliability: 3/5 Build Quality: 5/5