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      08-11-2019, 01:13 PM   #66
edwarjejeega
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Drives: '19 M850i, '18 X6M, '16 M4
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Quote:
Originally Posted by ChrisBMWe92 View Post
Hello, i own a 2007 BMW 325D E92 with 406k kilometres (or 252k miles for my imperial friends). I bought it on march of 2018 with 382km (237miles) and currently i am having it for one and half years. Car still return 6.5-8l/100km in city and in highway even low as 4.5-4.1l/100km and in worst senario about 5l/100km(37mpg UK/31mpg US in city and 62mpg UK/52mpg US) with A/C on most times. On highway i always use cruise control at 100kph (62mph). Some weeks ago i take my friends to the Airport which was about 50kms (31miles) from where i live, we were 4 adults in car with the boot full of bags and with the a/c on and i manage to get 4.4l/100km (64mpg UK/53mpg US). My tires are nexen su4 (  front:225/40/18/ rear:255/35/18 ) i searched it and was the tires with the less rolling resistance of B. My EGR is deleted and i am not sure about my swirl flaps and also about my DPF ,even if my DPF its still on car it must be finished after all that millage because i smell the diesel from my exhaust every time i park my car but i dont see and white or blue smokes, sometimes is see black smoke but very rarely and this happens when i am driving too much without Highway or without flooring it. I change oil very regularly (i used to change every 3k kms or 1.8miles but now i am changing it every 5k kms(3k miles). I was using BMW's recommended oil like castrol edge 5w-30 full synthetic but it was consuming oil i changed to 5w-40 castrol edge turbo diesel and now is consuming about 1.5-1.7litres on 5k-6k kms. Also i know the previous owner and he used to drive the car too much every month on highway ,he was changing oil once or twice a month with the recommended oil. He told me that the car was remaped and the car was very fast at my first days of ownership with too much torque but after some days i felt that the car it was slower , i recorded the acceleration of my car and compare it with other factory stock 325D's and they were exactly the same on accelerating and gear changes and everything. On my driving i am very careful on the first 15-20 of driving my car i drive so slowly that the turbo cant even spoil i keep the rpm's as low as possible and in general i avoid fast launching and hard braking and fast cornerings. Every 3-4 weeks i check my tires pressures and i always put as much pressure as the factory recommends. Every time i start the car i wait about 20-40sec before leaving and when i park my car always leaving it about 1-2 minutes to cool down and i put sunshades to avoid sun getting to my dashboard. In the time that i am owning the car i changed my gearbox oil and filter from the BMW, i also changed brake fluid steering wheel fluid and my coolant fluid. I also changed suspensions front and rear all bushings underneath the car break disks and pads (i also avoid using cheap parts for saving money, i prefer paying more to last more). The interior of my car its like new, i dont smoke and neither i let anyone to smoke in my car and every year i deeply detail my car interior and the seats lether still in perfect condition and before i use any product i read carefully the instructions and also i do small researches on internet and i have always a microfiber towel on my armrest and if i spill anything accedently i clean it immediately. On the exterior the car is repainted with very processional job and its almost impossible to understand if the car was painted and i wash it almost every week.
Now as a high millage car has some problems, one problem it was that the oil cooler brake and it mixed water with oil put i park car and i didnt drive it until it was fixed. One other problem is my automatic gearbox when i push it to the limits it goes to limb mode, more noticeable is when its going from 4th gear to 5th when i am flooring it ,on regular driving my gearbox is working fine without any issues. My friends advice me to fix it or changed but since i drive moderately i am pretty okay with that. One other issue is that in winter when i start my car in cold too much smokes come from my exhaust and its shaking for about 30sec but when it starts to warm up it works perfectly. I take it to a car mechanic that specialises on BMW and he said that is my injector and they need to get cleaned and rebuild. He checked injector lines and they are in good shape and also he changed intake gaskets but still makes the same problem
A big sorry for my big story and if anyone know how to solve my smoking in winter problem and can help is very welcome. Also any advice for keeping my car and my m57 engine in good condition please comment
I'm not really a certified expert in that work so I couldn't give you an answer. Have you taken it to multiple shops, maybe one could find the issue the other couldn't.
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