If your car is shaking or vibrating on the road, this is another sign that your transmission needs attention. Have the car towed to your auto repair shop and have the problem fixed.Ĭompare: BMW vs Porsche BMW vs Audi BMW vs Volvo BMW vs Mercedes Car shaking on the road If you’re experiencing such issues, you should stop driving as you may damage the transmission and engine further. In worst cases, shifting delays may cause the BMW 750Li to go into limp mode and stall. You may also hear clutch squeaking or experience gear-shift hesitation, which may leave you at high or low RPM. So, if you’re experiencing some difficulty shifting gears or notice intense jerking, this is a sign that you’ve got transmission problems. Shifting delays are very common in BMW models. What are the common transmission problems with BMW 750Li? Shifting delays But what are the transmission problems with the BMW 750Li?Ĭommon transmission problems with the BMW 750Li are shifting delays, whistling noise, jumping during acceleration, burning smell coming from the hood, car shaking on the road, transmission fluid leaks, and the check engine light coming on. However, like most BMWs, this model also has several issues to deal with. It is comfortable, luxurious, advanced, safe, spacious, and performs outstandingly. One thing to be aware of, don't fall into the trap and buy a cheap Chinese MAF sensor, instead of using a thin wire element they sometimes use a plain resistor, this has a much larger mass and therefore takes longer to change temperature (as airflow is measure by current change in the element caused by temperature change) and a much slower reaction time.The BMW 750Li is one of the finest luxury sedans on the market. I will clean mine tonight before I buy a new one and see if it makes any difference, however the component you are showing that your cleaning is not actually the sensor element, it's the sensor used for temperature compensation, the actual hot wire element is inside the black plastic housing. Had the engineer test drive my car and confirmed the trans and TC are fine and that it's an engine management fault. Thinking it was the trans slipping I took it to a specialist ZF transmission service centre. I have been having loads of drive ability issues lately, very sluggish, rough running, poor acceleration etc. Hope this helps guys, good luck and let me know how it works out! On the can of MAF cleaner it says dries instantly, but you really should give it at least 10-15 minutes to dry to be safe. Take a que tip, and very CAREFULLY clean along the metal piece of the sensor.Īfter you are done give it some time to dry and reinstall. Take the can of MAF cleaner and spray all over the MAF up until the rubber gasket, make sure to not spray on the connector. Next step get some MAF Cleaner from Autozone or PepBoys, you can use other electric cleaners, but why when there is one designed specifically for this. Make sure you let the MAF cool down, or better yet do it on a cold engine, because if you try cleaning it while it is still hot you can fry it. There is a plastic covering that needs to be removed which is just held by clips, be careful removing them as they are easy to break.ĭisconnect MAF by gently pushing on the release, do not apply any force, youll see the release right by the connector. To remove it there are two torx screws, one on top and one on the bottom. If you guys have any questions let me know Id be happy to help.Īttached in the photo you will find the MAF (Mass Air Flow Sensor). Hope to able to contribute to this board, and hang out here more often! Be careful when cleaning it make sure to be extra gentle, as its a sensitive part. Whoever has these same problems should really give it a shot. It appears the MAF sensor can really screw things up in terms of oxygen distribution and thus causing these jolts and such. Posting this hoping it will help fix the issues many of you are having. After cleaning again it drives great! I have ordered a new MAF and will be replacing mine, as it shouldn't need cleaning that often. Few days ago had it happen again, I figured Id give it another shot before buying a new one as they are not returnable. Long story short after cleaning the MAF with special MAF cleaner, and a que tip, I had put on approx. After trying many options, I decided to try cleaning the MAF, changing the MAFs has done wonders on an M5 I used to own. I have done alot of reading about the hesitation and jerking that seems to happen to pretty much everyone. Hi guys, I am a long time BMW enthusiast, have been driving a 750i sport for some time now.
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