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I concur; the responsibility should not be solely placed on the parking pawl. Engage the handbrake/e-brake first, then shift into park (P). In certain vehicles, selecting 'P' activates the electronic brake, as observed in my M340i and the M5; nonetheless, it is advisable to engage the parking brake first to prevent undue stress on the parking pawl.

Always utilise my method; it is detrimental to place the vehicle in park and rest against the gears. My M4 has a specific sequence: engage the handbrake, wait a few seconds, shift into drive, then turn off the engine, or alternatively, shift into neutral, engage the handbrake, turn off the engine and then press again to shut down. This prevents the parking mechanism from merely resting on the gears, which I have been informed is poor practice.

The reason for their malfunction is that individuals operating automatic vehicles neglect to engage the handbrake, resulting in internal rusting of the drum. I hardly utilise mine, but occasionally I will engage it briefly and drive until I reach the road to clean the drum.

I replaced the rear disc and pads on my 2019 4 Series a few months ago, and the shoes appeared to be in excellent condition. A spray of brake cleaner will effectively clean the surface. As others have mentioned, you will need to adjust the shoes after fitting the new disc. Numerous YouTube videos exist that demonstrate how to adjust shoes. Disregard the section concerning the modification of the handbrake lever. The 'P' position merely secures the transmission, with no relation to the handbrakes.

The P button does not engage the brakes; it locks the gearbox instead. Regarding the shoes, I believe they are acceptable; nonetheless, I would opt to change them to ensure their reliability for years to come. The shoes should endure for the duration of the car's lifespan, I would presume.

Thank you everybody for your responses; they are quite beneficial. I am working night shifts, so I will respond late. My car is equipped with a handbrake and features an automatic gearbox, which includes a gear selector with positions for drive (D), neutral (N), reverse (R), and a park (P) button at the top. The vehicle must be in neutral, the parking brake disengaged, and the 'P' button deactivated to remove the disc. Are the shoes satisfactory, or must I replace them as well? The handbrake is not functioning effectively, therefore I am considering whether I can only tweak the shoes following the replacement of the discs as Jim suggested. What occurs when you press the 'p' button? Does it activate the pads or the shoes?

The cable requires no adjustment; it is equipped with a spring-loaded slack adjuster that must be placed in the service position. If it is an electronic handbrake, it is rather simple to perform, preferably utilising diagnostics to engage service mode; however, it can also be accomplished by removing the motor and manually unwinding it.

This type of handbrake often features a lip on the interior of the drum section of the disc. To remove the shoes, it is advisable to utilise a small flat-blade screwdriver through a wheel bolt hole and retract the adjuster. It is uncomplicated, although requires some effort to identify the adjuster through the bolt hole. When installing the replacement components, reverse the process and modify the shoes using the adjuster rather than the handbrake cable.

The 2016 3 Series is equipped with the same manual handbrake as my 4 Series. Replacement is straightforward; however, it is essential to remember to engage the handbrake to prevent the vehicle from moving when replacing the front brakes. When changing the rear components, it is essential to secure the vehicle using wheel chocks, as the handbrake must be disengaged to remove the disc; otherwise, the shoes will obstruct the disc's removal. You wish to avoid the disruption caused by a vehicle in motion while work.

If you are referring to a handbrake, then no.If it is an ancient mechanical, then absolutely, park and hold.

Do you mean pressing the P button on the automatic gear selector PRND? Do you possess a hand brake, also referred to as an emergency brake?

Hello, I possess a 2016 automatic 3 Series equipped with a parking brake button. I have previously replaced brake pads and discs on other vehicles, but only on the front of those cars, not on this one. Is the rear simple to execute? Does the 3 Series possess a drum? Thank you in advance.

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It was successful on the third attempt. Upon removal and reinsertion of the fuse, it resets to 12 o'clock rather than resuming from its previous position (first attempt...). It accomplishes this by rotating the hands the longer distance from their previous position to 12 o'clock, rather than the shorter route. It surpasses 12 o'clock, reverting to approximately 10:45 before returning to 12 o'clock (third attempt...). It is now approximately one minute behind, but life is too brief, and I lack the motivation to address it.

This vehicle lacks a mechanism to reset the clock via the instrument cluster; the only modifications available in the 'Settings' menu of the instrument cluster display are the digital speed display, odometer units (mph or kph), and language selection. The fuse is now blown, and my phone is programmed to alert me just prior to the need for replacement. I remain hopeful that it will succeed, as I perceive no rationale for its failure.

I appreciate that. The owner's manual does not specify a manual setup technique; nonetheless, I will investigate further now that I am aware it is possible. Salutations. I am aware of the MOST connector box; I simply have not attended to it yet. It is not an issue.

As I recall from the installation on my W211, it necessitated utilising STAR to inform the vehicle that it no longer possessed a COMAND unit (i.e., configured to Audio20 or a comparable system). The menus were reorganised to make the clock setting accessible in the dashboard cluster, instead of being configured using COMAND. To connect the steering wheel controls, an interface box is required to facilitate communication between the steering wheel and the head unit.

My imported 2007 ML63 is equipped with an aftermarket head unit, hence lacking the COMAND system or any other Mercedes head unit. The steering wheel controls are nonfunctional, perhaps due to the incompetence of the individual who fitted the head unit, which suggests that resetting the clock is also not feasible. The analogue clock functions properly and maintains accurate time; nevertheless, it is somewhat more than two hours slow. The clock is not independently fused, and unless the iCarsoft MB2 can reset it, which to my knowledge it cannot, the sole remedy I can propose is to remove the instrument cluster fuse (No. 11 in the dashboard fuse box) and rejoin it ten hours later at the time indicated on the clock. Does anyone possess alternative suggestions?

I fitted a 12.3" aftermarket display from Aliexpress in my B8, significantly enhancing my experience with Android Auto. The Nunoo Factory Store received excellent reviews. My configuration included a 2G MMI High with a Bang & Olufsen sound system, and the new display continues to provide exceptional sound quality. The MMI High employs fibre optics for audio transmission, resulting in a significant enhancement.

Do you have any recommendations?

The display is excellent. The audio quality on my device is excellent. The installation process is quite straightforward. The integration of Google Maps and Spotify on Android Auto is exceptional. The expansive display enhances the interior's modernity. I am quite pleased that I obtained mine. The processor is rapid as I acquired the highest specifications. Each screen manufactured is tailored for the particular original device. The greater the popularity of the original unit, the more options available for finding your new screen, including price, processing speed, supplier, and, most critically, the functionality of the new device. I will share images of my screen in operation; however, please note that this pertains only to an MMI 2G High for a B8 A5, and I cannot comment on any other device. If you are interested in a unit, it is advisable to visit Aliexpress and add it to your wishlist. Aliexpress will thereafter inform you when a sale occurs (I acquired mine for £246). Best of luck

An adequate amplifier and speakers will not incur such expenses and will produce sound quality comparable to that of B&O.

What is the quality of the 12.3-inch display? Is the processor rapid? Acceptable pixel quality, among other factors? Are there any images available? I intend to acquire Android Auto for utilising Spotify and Google Maps. I prefer the MMI multimedia unit; nevertheless, if the sound quality matches that of the concert, I am willing to compromise. I unequivocally desire Bang & Olufsen, as I wish to avoid incurring substantial expenses to upgrade the conventional system.

I consistently prefer the MMI due to the extensive network built in those vehicles. Retrofitting a MOST network for a potential upgrade to MMI is a daunting task that necessitates complete interior removal and the cutting and soldering of the wiring harness.