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Used 2005 BMW 6 Series Coupe Consumer Reviews

4.9 out of 5 stars
28 reviews

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Pros
Cons
5 out of 5 stars

Engineering at it's best

Hily, 04/02/2019
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
58 of 59 people found this review helpful

I have had my 6 speed manual 645ci for over 30,000 miles as I am writing this review. It is an 04 and I bought it in 2017 with already 105k miles when purchased and chose the manual instead of the automatic due to transmission issues BMW had on the V8s not being able to handle high amounts of torque. I also got it as a coupe because I live in Houston, TX and don't want to be dealing with what harsh freeway noises, 18 wheelers and break-ins which are easier with a conv to do. You will either love the car or flat out hate it. Not because of the way it drives or the way it looks, which is AMAZING ! The materials feel so luxurious and that's coming from an MB owner, it is definitely futuristic for the model year. I've had people think it was at least 2015 and no one thought it was less than 2012. But you have to be careful with these cars. I have owned an MB E63 AMG and 2 E55s AMG (still own the older one 2002 model, can't seem to let this one go) and with ALL of them, if you do not drive them consistently you will have problems (I drive around 20k miles a year with the 645 as my daily car, at least 70 miles per day to my work and back). with the 645, Electrical problems will most definitely happen if you leave it sitting. On top of the electronic overload that is in the car which drains the battery if you don't drive it, the car itself is VERY sensitive to any voltage fluctuations and will start giving warning lights and shutting off systems in response (First system to go is seat and air heating, then Active Steering...) a common problem is that the Valve cover oil leaks happen right on top of the alternator (generator) and with time messes up the brushes and the voltage regulator, so if you get crazy warning lights come on and off, that's probably why. Battery can be the issue as well, make sure you get a good quality battery and that IT IS PROGRAMMED to the car after changing it. Same thing for the AC compressor. They just happen to be positioned in place where Valve cover oil leaks take place (and they all leak oil, specially the V8s). If you do replace any of those 2 parts, please look at the oil problem if you have it because you will find yourself in the same situation. I have had that problem, but went away after driving it alot. I also used the Castrol 0w-40 which tends to be a little thicker and cause less leaks. There a seal stem problem that these engines have and I was told if you keep the oil clean (at least once every 5k miles, you should be ok) I do it every 3 to 4k miles) This is by far my favorite BMW by far and is staying for the long run. Styling is an A+++ turns heads wherever you go and drives better than it looks. Quiet, Lots of Torque and definitely Cornering is special in this car I assume from the Active Steering but the car turns before you even think it. Trunk is very spacious on the account of small rear leg room but I'm 6'3 and fit very comfortably. Long drives in this car are a blast. the long hood gives easy access to all engine components. You have to a little mechanically savvy when you own this car it speaks a language of its own. If you're the type of person that takes it in every time a warning light comes on then this is probably not the car for you, most times it is not the direct problem anyway. It will be the best driving experience if all goes good.

Safety
5 out of 5 stars
Technology
5 out of 5 stars
Performance
4 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
5 out of 5 stars
Value
5 out of 5 stars
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5 out of 5 stars

BMW 645 Convertible

paul Bailey, 04/26/2015
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
35 of 39 people found this review helpful

Without a doubt the best car I ever owned. I have had Mercedes, BMW 530i, Ferrari 355 (2 years old) several Porsche 911's and this is just such a great car. Economical, fast, brilliant handling, stylish, practical, great sound system, reliable. I cannot fault the car and abolutely love it.

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5 out of 5 stars

Buy ONE

Lee, 11/22/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
8 of 8 people found this review helpful

Don't drive this car unless you're prepared to purchase one. I went to the dealer to test drive a 7 series. I thought I would just compare it against the 6, so I test drove one and purchased it right afterwards. This car is above and beyond any thing I have ever owned. I like it. I purchased the sport model and the back seat isn't a problem. If you want a big back seat buy a 7 series. I love all of it.

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4.88 out of 5 stars

BMW 911

dasjr64, 12/14/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
4 of 4 people found this review helpful

My first BMW is my 99-528 that I drive daily and can't say enough about so I was destined for another. I was between a 645 and 745. I chose the 645 and have not been disappointed. I do miss the ability to take the 3rd or 4th passenger on occasion, however the ride, handling and looks far outweigh that. I also own a 911 and am considering getting rid of that to upgrade the 528 to a 745. The 645 gives me eveything I was getting from the 911. The only problem I have had is the navigation has been occasionally acting up, saying "can't read disc" I'm scheduled to take it in next week so hope it's an easy correction.

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3.75 out of 5 stars

Unreliable starts

samanthaat, 06/30/2011
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
23 of 31 people found this review helpful

At first I loved this car. I'm a low mileage driver and BMW tells me the car is meant to be driven a lot. If you don't drive it a lot this car is a life of hell. The BMW dealer told me if I don't drive it at least one day a week for an hour the battery will die. He said there is too much draining the battery. It's not a week though. Seven starts drains the battery. I keep it on a trickle charge, but that apparently doesn't keep it from draining. After the battery drains a couple dozen times, its time for a new battery which today cost over $500. That's not acceptable but what is really unacceptable is having an $80,000 car that leaves me stranded and calling AAA once a week.

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4.88 out of 5 stars

what a blast

BacktoBMW, 02/18/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
3 of 3 people found this review helpful

I've had my 645ci for two months now. It is the most fun car I've ever driven. It's a head turner and eye catcher and a road grabber. BMW hit it out of the park with this one. Handling and performance are supurb you feel safe and solid in every turn. I like the lines on the 645CI better than the convertable which looks a bit choppy. After a month I got used to the improved I-Drive. The issues I've had are waiting for over two months for sirius radio and my new blackberry phone does not work with the bluetooth feature on the 645. This car is amazing, I look forward to seeing you in my rearview mirror.

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4.63 out of 5 stars

6 Series - Buffed Elegance

Sarge, 09/20/2007
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
3 of 3 people found this review helpful

Great car. With the sport package, this is truly buffed elegance. I really enjoy the interior and the exterior design. Great sound system. As for the much maligned iDrive. If you don't enjoy being challenged by technology, don't get the iDrive. As for me, I am a techy, so I find the iDrive very functional and entertaining.

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4.75 out of 5 stars

the perfect car

bmwforlife3, 04/11/2013
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
8 of 13 people found this review helpful

you can not ask for a more better car. The speed is their the look is their the reliability is there it is just and overall perfect car i put on some 21" chrome BMW rims and everyone looks when i drive by its the best car BMW makes

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4.88 out of 5 stars

bmw 6

kevin f jursinski, 07/09/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
2 of 2 people found this review helpful

An awesome combination of power, style and comfort. A luxury coupe that handles better than most sports cars. I took advantage of the BMW performance driving school which is free to all 6 series purchasers. This vehicle is one ultimate driving machine. The glass sunroof fills the entire front compartment--like a glass top convertible. Excellent.

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4.75 out of 5 stars

For the price nothing come close, except

tony, 05/18/2006
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
2 of 3 people found this review helpful

The only car the come close to the 645ci is a 545i. The design is excellent, ride quality is great, handling out of this world - what's to say more. Go out and drive one

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3.88 out of 5 stars

midwest owner

zin, 02/12/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
3 of 6 people found this review helpful

My experience with the vehicle has not been good because the dealership has not had trained staff for one. Secondly there are on board computer problems since delivery which have not been fixed. The paint finish is an issue in which small scratches have appeared in the clear coat. The design seems susceptible to front end/hood damage from road stones. Bluetooth sometimes fails with cell phone.

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4.25 out of 5 stars

Great idea poor implementation

Camner, 10/14/2004
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
3 of 6 people found this review helpful

This is an exquisite car in form and powertrain but it is frstratingly poor in terms of enjoyment and ride quality. The throttle is too long in regular driving but too responsive while in sport mode. The iDrive is the single most foolhardy idea that BMW has ever incorperated. It distracts the drver, cannot be used during travel, and detracts from the driving experience, leaving you frustrated and unfulfilled. The driver is very isolated from the road again leaving me unhappy and frustrated with the car. I personally regret my purchase of this particular automobile and hope that BMW corrects the problems with this car before it ruins thier previously infallible comapny.

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4.88 out of 5 stars

645ci a Homerun

Thomas861, 02/03/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

I fell in love with the looks of the 645ci coupe at an auto show, but with a 430 gs Lexus, there wasn't much reason to spend 80k on a new car.....that it, until I DROVE the 645. What a dream. And worth every penny.

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4.75 out of 5 stars

Awesome!

RL, 04/07/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

I traded in my 2004 745i on a 2005 645ci. I had a negative equity of $5k on the 745i but it was worth every penny cause the 645ci is just simply awesome. Nowdays, it seems that everyone has a 745 or a 5 series. The 645ci is so unique. I get many looks on the road. In fact, it reminds me of the old 8 series than the 6 series. I got the sports package which I think gives it a totally different attitude. I love this car so much more than that big 745i.

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4.75 out of 5 stars

Best luxury Coupe under 100K

RW, 05/14/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

This car is the nicest luxury sports coupe that BMW has ever produced. This vehicle handles extremely well on all roads including back roads that have twists and turns. My car is a coupe with an automatic transmission. I think this is the best way to purchase this car, especially in regards to resell. Exterior styling is this car's highlight. I think it looks great from all angles and people seem to look at it with awe or envy. The gas mileage is very good for a car of this size.I have enjoyed owning this vehicle and so far my car has been problem free.

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5 out of 5 stars

A Truly excellent Coupe

SMB, 06/10/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

This superb coupe provides all the enjoyment of a sports car, plus the additional benefits of useable rear occasional seating (and extra storage space) and a large trunk. The performance and roadholding are also excellent, in the true spirit of BMW.

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4.88 out of 5 stars

Outstanding 645Ci

Kennekb, 10/24/2004
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

The 645 is the marriage of a sports car and luxury touring coupe. The result is a car that can be justified as a family as well as a personal performance car. Interior is roomy enough for a family of four. Handling is what sold me on the car as well as the build quality and solid feel going down the road. I couldn't justify the convertible having owned Mercedes and Lexus hardtop convertibles. The coupe is outselling the convertible models according to dealers. Great car.

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4.88 out of 5 stars

6 Is the only number!

SteveK, 02/06/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

An alarmingly fast, stable, barn burner with more panache than I'll ever have. After owning three 5 series I couldn't bring myself to "love" the styling of the new 545. The 645 exceeds my expectations for speed, comfort, quickness, looks, control and, did I say speed?

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4.88 out of 5 stars

Best BMW I have ever driven or owned

JR, 02/08/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

I have owned BMWs since 1977 (3, 5 & 7 series) as well as two Porsche 911s. The 645 is the absolute best, hands down - performance, drive, feel, style (interior and exterior). Recommend sport and premium pkgs. Sport drive is amazing. The 645 is the perfect balance of performance and comfort. The sound of the engine is awsome. And I-drive is very easy to understand.

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4.63 out of 5 stars

Endless Power

Ken, 03/12/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

The car is a beautiful head turner with quick acceleration and great braking. That more than makes up for the poorly excuted iDrive. It's the only bad thing about the car. The driving experience is hindered by this awkward, needlessly confusing gizmo. The integrated Bluetooth phone system does not operate smoothly. The sound system is good. Trunk space is adequate. The exhaust note is thrilling. The front seats are supportive and comfortable. The rear seats are for emergency use and should be considered additional storage. Overall, it's a gorgeous, fast, sturdy, well built ride that will give you plenty of smiles. Driving this car makes me feel good.

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4.88 out of 5 stars

BMW 645ci coupe

Dennis Tam, 01/12/2006
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

Awesome comes to mind. Great road handling, great pick-up speed, great sound system and a car that receives a lot of "double takes".

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5 out of 5 stars

car is fast keeps up with anything

spicey sprite, 08/26/2022
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 1 people found this review helpful

*I bought a used 2005 645ci after owning a 2009 vw passat and it came with after market parts like wider back wheels and carbon fiber hood and it has enabled the car to achieve a quarter mile of 12 seconds. *If you get an exhaust delete for this or after market exhaust the car will sound like thunder ,it catch alot of people by suprise it cracks me up. *I gapped a dodge durango srt and i kept up with a 2011 bmw m5 with this model bmw so far.Warning it can become very addicting to drive this car like youll end up blindingly spending hundreds of dollars in gas a week just because of the adrenaline rush you get from pulling off from slower cars and knowing youll always win. *Next thing if you bought this car at 190,000 miles on dash you better start saving to $12000 because after 1600 more miles your gonna get a transmission failure error on your screen and your car wont be able to go in reverse and your gonna need new trans. *Leaks oil after 100k miles

Safety
5 out of 5 stars
Technology
5 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
4 out of 5 stars
Reliability
4 out of 5 stars
Value
5 out of 5 stars
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4.88 out of 5 stars

Awesome Coupe

645 DS, 06/16/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
1 of 2 people found this review helpful

What an excellent ride! This is my 3rd BMW and I most recently has a Lexus GS430 which was not fun to drive at all.The 645 CI has great power and it just keeps going faster and faster. Fuel economy is much better than I expected. I average 19-20 miles between city and freeway driving. Learned the whole iDrive system in a week. This is a good way to keep the dash clean.

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4.5 out of 5 stars

No Sports Car, But Great Tourer

D. Jamieson, 05/28/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
0 of 0 people found this review helpful

Fantastic acceleration and stopping power. Pretty slushy in normal mode, but the "sport" button makes it very responsive. Active suspension is incredible. iDrive is a great alternative to dozens of tiny buttons, and is surprisingly intuitive, as is the voice command system. Very quiet and solid-feeling. Turns heads. Main criticism is that the driver is quite isolated from the road. Interior a bit disappointing for a car in this price bracket (lots of plastic, cheap carpet).

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4.63 out of 5 stars

The best and most fun car I ever owned

Bruce Weisinger, 07/09/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
0 of 0 people found this review helpful

I cannot tell you how much I have enjoyed and am still enjoying this car after almost 1 year. I have had every type of car you can think of. However each car gets "stale" after a while. This car is sooo different I enjoy driving this car everytime. I live in Florida in the winter and New York the rest of the year. Driving either on Florida Highways or the Streets of New York, this car is amazing.

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4.5 out of 5 stars

Waiting for a M6

Ray Millers, 07/09/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
0 of 0 people found this review helpful

The tiptronic takes a bit of getting used to. It is very different and you should be very familiar with it before ordering this option. If you get a 04, it will not have bluetooth, and it will cost you over 2500 to get it retrofitted. The phone that comes with the car is junk, and neither BMW nor Cell companies will take any responsibility of hook it up. The microphones for the phones are junk. There are two possible upgrades that they will only tell you about after you complain loudly that people cannot understand you when calling from your car. I still only know about 100 of the 500 functions the I drive is able to perform. The dealership also does not know how it operates, figure it out!

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5 out of 5 stars

The BMW 6-SERIES

ADRIEN, 11/28/2004
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
0 of 0 people found this review helpful

I am loving this car more and more every day. The sound system is amazing, the handling at high speed on corners and curves is the perfect adrenaline rush, and yet the ultimate in safety. The leather seats conform to your body and contrary to the editor's remarks, this car is very sexy and its lines grab all the attention on the road. Even from those "elite"...not mercedes benz owners ( since the editor is so bias to those old-man vehicles). thank you. The next thing for me will be the M6.

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4.38 out of 5 stars

This car rock

fatty, 07/17/2005
2005 BMW 6 Series 645Ci 2dr Coupe (4.4L 8cyl 6M)
0 of 0 people found this review helpful

I love it. I love BMWs, compared to my old M3, this car absolutely is amazing and i highly recommend it for anyone looking for a new car. One downside, the back seat could use more headroom and space. The 3 series probably has more than the 6, which is weird. Overall though, the car rocks.

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