what are common problems with 2012 BMW 650i

The biggest problem is over-priced parts & service tech repair charges, poor reliability as no-one can keep them running unless you go to Germany for 5-6 years to learn. Notice I said tech not mechanic. Think backwards and upside down then turn over and cross your legs while doing a head stand then take drink of hard beer for a year and you will understand how they built them.

Thank you, I guess I will reconsider getting this car. Sounds like my dream car could be a nightmare.

Do you ask your lawn gardener about knee surgery? No. Go to a few BMW or European independents with good reviews and ask them about it. *DO NOT* go to the lowest common denominator shop that has the cheapest rates- premium quality techs and shops demand a premium rate, and you get what you pay for.

I purchased my 2012 650i Convertible 4 years ago. I had problems minor with door locks. Nothing else so far.

No major issues with mine other than the class action law suit referencing oil consumption. I have @75000 miles on mine.

Two years in and the only issues were the door lock sensors. But boy BMW service dealers locally are a rip off. My Porsche techs are still the best and guess what they work on Bemers.

I have on going problems with failing ignition coils on my 2015 650 Grand Coupe. Dealer service cant get it right. Very cool car but can't get it the run.

My car is now 8 years old. Just at 70000km (bit over 42000 miles) Transfer case which transfers power between front and rear wheels broke year 5, one year after warranty expired. $3000 Cdn, fortunately BMW covered 2/3 cost. Now shocks broke ($6000 Cdn) front rotors rusted and rear brake pads low ($2300 to 2400 to replace) rims are bent front years of hitting potholes w low profile tires & likely need to be replaced. Be very careful if you are buying a second hand car. Many of these cars available, cheap, but prepare budget for repairs which may end up costing as much as the car

2012 650 convertible... Holy bejeezus... about 35k in, all the gaskets and seals had to be replaced.. not under warranty.. cost 7000.00 last October... the damn engine throws a rod... at 53000 miles.. Now I'm 73 and intelligent enough to realize my reflexes aren't what they were when I drove Formula Junior in the 60's . . I've nursed this car.. Even the service rep agreed there is NO way a rod should give up in a motorcar like this at 53k... he contacted BMW... response, No relief... it set me back 15,000.00 ... I figured, OK, new engine... what could go wrong...? Then last week... a coil dies... I cough up 1100.00 to have them all replaced... and the above has been intertwined by the obligatory battery replacement every 2 years at 700.00 a pop.. I'm not a Mercedes guy, but damn, i'm thinking about 'em hard these days...,

I bought a used 2012 Black on Black convertible last year, nearly to the day. 8/11/2019. I loved it at first sight. After I bought it, trading in a "boring" 2013 Mercedes E350 coupe, I then did research. Of course, that's the extreme dumbass way to go about it. But. In a year of commuting to Silicon Valley, 65 miles round trip, in often heavy traffic, my repair bill has been $1200 for some coolant hose repair and about $200 for oil change and filter (DIY). It does leak oil, but if you buy the higher premium "green" oil, you won't have as many issues. Mobil 1 is not that great. But anyway, I went to the dealer where the first owner had it serviced and asked for the service records. The results were scary. It was obvious that the N55 engine has seen some extreme class action lawsuits and even engine replacements. But guess what? I still own the car 10000 miles later at 56K and I still love it. So, you gotta ask, "Can I afford this if it goes south on me?" I paid 25k for a 100k new vehicle. I'm sure there will be more issues -- right now they are: Active Steering and DSC issues which I have not fixed. Yet, it still drives like a dream.

I have had mine for the past 4 years and like above no issues other that the door locks. The oil usage is common with these cars so I deal with it. Other than that I love this car.

I finally solved the 650 issues, I sold the thing and ordered a AMG C 63

I have a 2012 650 i coupe purchased with 22,500 km. Hardly used by previous owner who is known to me. I believe the oil sensor could be faulty as it keeps showing max level and then drops below and the max line and then goes to the normal level. I have been topping up the engine oil as per reports on oil consumption. There are no oil leaks underneath the car nor do I smell oil when the vehicle is parked in the garage. I am just wondering if the oil sensor which costs $400 + is faulty. It has been recommended that I do an oil consumption test by replacing the oil and to drive the car for 2-3 weeks followed by draining the oil again to measure the consumption level. Any comments would be appreciated.

I’ve owned numerous BMWs in the 90s and early 2000s. All new. I purchased a used 650i for my son, prior owner used less than 5k per year. Vanous solenoid replacements, leaky coolant hoses, vacuum leaks. Oil useage is sporadic, waiting to see what issues crop up next. It’s a shame this pristine convertible has these inherent drain issues, as well as the BMW OEM parts that are at such a premium aren’t better. This vehicle has given me cause to look at other options. All the German cars have less than average consumer reports. They’re expensive new, expensive to maintain, over designed and unreliable. Such a shame with the ride and interior features and low noise levels so desirable. The plastic engine bay parts are another culprit. These parts become brittle and break, really poor design tied to vacuum and cooling and better materials would last for many years. These engine bays could be literally bullet proof as well as the engines but BMW has yet to remedy what became so apparent in the N63s and beyond.