If you want a precise, factory-grade oil filter designed to keep your BMW engine clean and running smoothly, choose Mann Filter HU 816; if you need a versatile, universal mounting solution to secure your phone to your car's magnetic holder for tire maintenance or navigation, choose DSTELIN Universal Metal Plate.
• Mann Filter HU 816: Its biggest strength is its exact fitment for specific BMW models like the 125i, 128i, 130i, and 135i series, ensuring optimal filtration without modification. Its trade-off is that it is strictly an automotive part with no utility outside of engine maintenance, offering zero value for electronics or phone mounting. This pick is for BMW owners who demand OEM-level reliability during their regular service intervals.
• DSTELIN Universal Metal Plate: Its biggest strength is its massive versatility, coming in a pack of eight (four rectangles and four rounds) that works with any magnetic car mount and fits various phone sizes. Its trade-off is the potential interference with wireless charging capabilities when the plate is adhered to the back of the device. This pick is for drivers who prioritize flexible phone placement and need a reliable backup for their navigation setup while on the road.
The Mann Filter HU 816 is not a generic part you can slap onto any vehicle; it is engineered with surgical precision for a specific lineage of German engineering. When you look at the specifications, this filter is designed to replace the original equipment oil filter in BMW models ranging from the 2006 to 2013 production years, covering the 1 Series (125i, 128i, 130i, 135i) and the 135is.
For the driver who treats their vehicle as a precision instrument, this filter represents peace of mind. The design focuses entirely on keeping the engine lubrication system free from contaminants. It comes as a single unit, often including the necessary gasket for the oil drain plug, which simplifies the replacement process significantly. You do not need to hunt for extra parts or adapters; the package contains exactly what is needed for a standard oil change routine.
You should buy this if you own one of the compatible BMW models listed above and are due for your next scheduled maintenance. It is ideal for the DIY enthusiast who wants to ensure their engine receives the correct flow rate and filtration capacity without risking damage from an ill-fitting aftermarket alternative. However, if you drive a different brand, a different model year, or if you are looking for a product to use for anything other than engine care, this is not the right tool for you. It has no secondary uses, no adaptability, and no relevance to phone accessories or general hardware. It is a specialized component for a specialized job.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-08 · 6 min read · Independent comparison
The DSTELIN Universal Metal Plate serves a completely different purpose, acting as the critical bridge between your smartphone and your vehicle's interior. Unlike the oil filter which is a closed-loop mechanical component, this product is an open-accessory kit designed to transform any non-magnetic phone case into a magnet-ready surface. The package provides a robust variety of options: four rectangular plates measuring approximately 1.77 by 2.56 inches and four round plates with a diameter of 1.57 inches. This diversity ensures that whether you have a large modern smartphone or a smaller older model, there is a shape that will adhere cleanly without obstructing ports or cameras.
This kit is built for the driver who needs their phone mounted securely for navigation, hands-free calling, or simply to monitor their surroundings while driving. The adhesive used on these plates is described as strong, allowing them to stick firmly to the back of your phone or inside your case. The fact that the set includes eight plates means you have spares for friends, family members, or even a backup if one plate loses its stickiness over time. The color is a neutral black, ensuring it blends in rather than standing out as a cheap accessory. It is a universal solution that works with any magnetic mount holder, making it a cost-effective way to upgrade your current setup without buying a new phone or a proprietary mount system.
However, there is a significant functional trade-off to consider before applying these plates. Because they are made of metal, placing them directly on the back of your phone will almost certainly disable wireless charging capabilities. If you rely heavily on a wireless charging pad in your car or at home, you will need to remove the plate every time you want to charge your device, or find a way to position the phone so the plate does not interfere with the charging coil. This makes the DSTELIN plate perfect for those who prioritize physical stability and mounting flexibility over the convenience of seamless wireless charging.
• Best for Engine Protection → Mann Filter HU 816. If your priority is maintaining the health of a BMW engine, this is the only logical choice.
• Best for Phone Mounting → DSTELIN Universal Metal Plate. If you need to secure your device to a magnetic cradle, this is the essential component.
• Best for Specific Fitment → Mann Filter HU 816. It is tailored specifically for BMW 1 Series models from 2006 to 2013, eliminating guesswork.
• Best for Versatility → DSTELIN Universal Metal Plate. With eight plates in multiple shapes, it works with almost any phone size and any magnetic mount brand.
• Best for Simplicity → Mann Filter HU 816. It arrives as a single, complete unit ready for installation with the included gasket.
• Best for Sharing → DSTELIN Universal Metal Plate. The pack of eight allows you to outfit multiple devices or share with others.
• Best for Tire Maintenance Support → DSTELIN Universal Metal Plate. Having a stable phone mount is crucial for checking tire pressure gauges or following maintenance guides while working on tires.
• Best for Long-Term Durability → Mann Filter HU 816. Designed as a permanent replacement part for engine systems, it offers reliability that temporary accessories cannot match.
I would buy the Mann Filter HU 816 if I am servicing my BMW because engine protection is non-negotiable, and using a generic filter risks long-term damage. However, for the specific task of tire maintenance, I would reach for the DSTELIN Universal Metal Plate. Securing my phone to the windshield or dashboard allows me to watch instructional videos or check digital gauges while I work under the car, and the ability to swap between rectangular and round plates ensures my device stays put without interfering with my grip or tools. While the oil filter keeps the machine running, the metal plate keeps the information accessible, making it the more practical choice for active vehicle upkeep.
Yes, the product description confirms compatibility with all magnetic car mount holders since the plates act as non-magnetic accessories that enable magnetism on your phone.
It is highly likely. The manufacturer explicitly notes that the metal plate may disable wireless charging and suggests removing the case or plate when using a wireless charger.
The package includes a total of eight plates: four rectangular ones and four round ones, providing plenty of options for different phone sizes and mounting preferences.
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