Your BMW's transmission is one of its most important parts as it transfers the power needed to drive the wheels from the engine. Transmissions found in BMWs come from either Getrag, Jatco, General Motors, Aisin, or ZF Zahnradfabrik Friedrichshafen and deliver the performance needed to complete the Ultimate Driving Machine that is your BMW. If you are considering purchasing a BMW transmission, read on to learn about this component and how to make the correct purchase.
Key Features of BMW Transmissions
Performance
BMW's fast and clean-shifting transmissions give drivers an exhilarating experience. Sports-tuned transmissions like the ZF8 Sport Steptronic take your drive to the next level.
Fuel Efficiency
BMW cars are well-known for their fuel efficiency. One of the main reasons for this is the lightweight design and efficient operation of their transmissions. BMW transmissions are built with high-quality materials that help reduce their weight, which, in turn, contributes to fuel savings. Additionally, BMW transmissions use advanced technologies to optimize their performance and energy consumption, making them highly efficient. As a result, BMW cars are a great choice for those who are looking for an eco-friendly vehicle that can help them save money on fuel costs.
Reliability & Longevity
You'd expect the brightest flames to burn out the fastest. But surprisingly, BMW transmissions are pretty durable (with the correct maintenance performed). When it comes to maintenance as well, BMW transmissions have been said to be able to go longer between sessions, especially when it comes to transmission fluid changes.
Sourcing BMW Transmissions (OEM vs. Aftermarket)
When you purchase a brand new BMW, it comes with an Original Equipment Manufacturer (OEM) transmission made by authorized manufacturers such as Getrag, Jatco, General Motors, Aisin, or ZF Zahnradfabrik Friedrichshafen. Transmissions made by third-party manufacturers and usable in BMWs fall under the "Aftermarket" parts category.
Unless your BMW transmission is out of production and impossible to find, we recommend investing in an original BMW transmission to return your car to its original level of performance. Because of the more stringent levels of manufacturing, you'll likely get more use out of an OEM replacement. Aftermarket transmission might not only be excluded from BMW's warranty, but they could also void the warranty and even damage your vehicle when installed. Moreover, they might not even fit into your BMW properly. When it comes to an expensive part like the transmission, it's prudent to avoid taking chances and to go with the original.
Tips for Verifying the Quality & Condition of Used Transmissions
There are several ways to tell if a used transmission is likely to last:
1. Check that it is free from any leaks, as these could point to faulty seals and o-rings.
2. Be on the lookout for rust, as it could be a sign that some of the transmission's metal parts are corroding.
3. Make sure it comes with all the required documentation showing if it has gone through any major repairs (avoid those that have received any).
If missing, stay clear of it no matter how good it looks.
Types of BMW Transmissions
Automatic
To change gears, automatic transmissions use a torque converter that is controlled automatically through electronics, pneumatics, or hydraulics instead of manually through a clutch pedal.
Steptronic
The Steptronic is BMW's automatic transmission that combines the best of manual and automatic. Steptronic has a fully automatic drive mode where gear selection is performed by the transmission, as well as a manual shift mode where the driver can shift gears manually through the use of gearshift paddles, giving you the type of control you want over the transmission with just a quick selection.
Steptronic Sport
The Steptronic Sport brings along an additional sporty gearshift configuration besides the automatic and manual shift modes. Depending on the model of your BMW, the Steptronic Sport can also include an optimum shift indicator in manual mode, idle speed coasting in ECO PRO mode, Launch Control, and Driving Experience Control, including "Sport+" mode.
Maintenance & Care of Your BMW Transmission
BMW transmissions are tanks. But that doesn't mean you should skip any care and maintenance altogether. You can get the most out of your BMW's transmission by sending your vehicle for scheduled maintenance, which should include transmission fluid checks. When driving, ensure that you're in the correct gear (that means not leaving your manual transmission in low gear for too long) and that you warm up your BMW before driving so that the oils flow correctly. Make sure that your tires are not overly low, as driving on them can put unnecessary strain on your transmission. Finally, your BMW's cooling system is also responsible for cooling the transmission fluid to an appropriate temperature, so make sure it is in good order.
Common Issues & How to Address Them
Transmission issues are frustrating and, most of the time, require a trained specialist to remedy them. These include delayed shifting, slipping gears, an illuminated check engine light, a burning smell, strange noises, and fluid leaks.
Occasionally, as with the case of burning smells and strange noises, the cause might be low transmission fluid or coolant levels. While you can check and top these up on your own, it might be all too late, as your transmission has already incurred damage. In such cases, repair or a whole transmission replacement might be necessary.
Are BMW Transmissions Expensive?
The price of a car will usually give an indication of how expensive its parts will be. Furthermore, the transmission is one of the most pricey components in any vehicle, so you'll be paying quite a bit for a replacement BMW transmission.
Where to Buy Genuine BMW Transmissions Online
Brand-new OEM transmissions can be purchased directly from your country's BMW and OEM parts retailers. On the other hand, second-hand BMW transmissions can be a cost-effective alternative. You can get these in great condition and at affordable prices here at BE FORWARD Auto Parts.
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