Thats very typical of most Pakistanis here to scare people off from something they don't even know of. I have an e36 bmw and the car has been ROCK solid in my 1 year of ownership. Nothing at all broke. Compared to that, a friend bought a 2008 civic and he visited the workshop dozens of time until now.
Thing is, most bmw and mercs until late 90s and upto 2001-02 are VERY stable cars and relatively easy to maintain as well since they are mostly mechanical. (not talking about the w220 S class, e65 7 series etc but the lower models, 3,5 series or c and e class only) are VERY good cars and are not hard to maintain at all. one just needs to find a decent one and then maintain it properly and that's it. Parts are also not expensive and are available easily.
whenever you change your car, consider a German one...