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In this 19-minute session, Kent will remove a rear oil pump from an early 722.3, disassemble it, and demonstrate some of the challenges associated with resealing it. 72234CLASS
In part three of his 722.3 video class, Kent will give you his recommendations of some tools and supplies you may need when you go to tackle this job yourself. He will also give you recommendations on additional manuals you should download from the internet. The video is 21 minutes in length.
This is a comprehensive video (30 minutes long) that provides an in-depth explanation of testing and adjusting the modulation pressure in the 722.3 and 722.4 transmissions.
Out of years of frustration trying to adjust the modulator during a test drive, Kent came up with a better and faster way to make adjustments by just "reaching" under the car. This little device replaces the plastic cap during testing and adjustment.
Kent will show you the procedure (along with troubleshooting and testing tips) with a 722.3 Transmission on the bench.
In this 13-minute session, Kent will open up the planetary gear assembly with the one-way clutch and show you how to put in the new seals. This one is a little bit tricky. You have to be careful not to knock the clutch assembly apart. It also takes some effort to get it all back together.
Kent will walk you through the steps to remove the drive shaft SAVELY. Replace the center bearing and carrier on the bench / vise. And finally, replacing the drive shaft correctly back into the car. This applies to the R107, W116, W126 and W124 chassis. The example here if from a W124 300E
In this detailed step-by-step 20-minute video instruction, Kent will take this unit apart on the bench and demonstrate how to install all new O-rings and seals. 72234CLASS
In this xx-minute video, Kent will explain how to set up and use the different components in his kit (see below) to test modulation pressure in a 1981 to 1995 automatic transmission. This should be done when replacing the modulator or after rebuilding a transmission.
In Part 7 of this transmission rebuild training class, Kent will prep the drums for reassembly with the new seals. Installation of the piston in the K1 drum can be particularly challenging.
These are probably the most important internal seals that you need to replace. Pressure loss in the K1 and K2 is probably the primary reason for delayed shifts and flares between shifts. This is the first part in resealing these important brake drums.
In Part 2 of this training series, Kent will show you what you will want to inspect before you begin ordering parts for a transmission overhaul. In most cases, you will only need gaskets, seals, and clutches, but you want to make sure. 72234CLASS
In this first class lesson, Kent will take apart a non-shifting transmission that he removed from a 1987 300E. The video is 23 minutes long, and you will get to see how everything comes off and out of the transmission case to leave you in awe of what lies inside.
Please note: These are not "complete instructions. Why are there no complete? Kent decided not to show all the details of removing and reinstalling the manifold, as there are at least half a dozen good videos on YouTube showing the entire process in detail.
These video instructions are specific to our Universal Diesel Fuel Boost pump kit. In this 24-minute video, Kent will show you how to assemble and wire the kit on the bench before installing it in your diesel.
In this 4-minute video, Kent will explain the theory of a power relay and how to wire it properly through a switch from a keyed power source in order to power an aftermarket component you are adding to your car.
In this detailed 30-minute instructional video, Kent will walk you through the process step-by-step of how to install the circuit boss and associated wiring to be able to power your auxiliary boost fuel pump and your fuel boost heater when completing your STC 100 conversion.
In this xx-minute instructional video, Kent will show you how to install his pre-fabricated, ready-to-install fuel boost pump kit for the W123 diesel Mercedes.
What a surprise when you find the early W221 and early W212 4matics don't have a fill plug in the front differential! The factory manual instructs removing the right front axle to fill and check the level. What??
This is a stress reduction and time-saving video. Those little airmatic fittings can be a real pain when you go to push the compressed air line into them to lock.
This only applies to Mercedessource conversion kits installed or being installed on the W116 300SD, all W123 diesels, and the 1981 to 1985 W126 300SD. In this xx-minute instructional video, Kent explains the hose routing you will have to change, the extra hoses you will have to add, and the fuel
In this 6-minute video, Kent will explain the use of each component included in his 722.6 power drain kit.
In this 24-minute video, Kent will
In this 15-minute on-demand video, Kent will explain how to use his injection pump de-gunking kits to clean out an old pump and to check the flow rate between each delivery valve. Watch the YouTube short video below to get an overview of these kits.
This is part 2 of Kent's two-part series on adding and rerouting fuel hoses to allow your 1977 to 1985 to run on straight vegetable oil (SVO) from the factory fuel tank (STC). kentssvokits
This is part 1 of Kent's two-part series on adding and rerouting fuel hoses to allow your 1977 to 1985 to run on straight vegetable oil (SVO) from the factory fuel tank (STC). kentssvokits
In this 25-minute instructional video, Kent will show you how to remove and replace the front wheel bearing on a 2007 to 2012 GL 350, GL 450, and GL 550, without removing the steering knuckle from the car. It is not easy, but doable if you have the right tools.
In this 25-minute, very detailed instructional video, Kent will show you how to use his special tool to remove the guide pins holding the top timing chain guide rails in the cylinder heads.
Kent's instructions for replacing the real seal in this style pump. Make sure your pump is all aluminum ZF pump, or this seal will not work. Total run time: 14 minutes. An 8-inch C-clamp will be required to complete the installation.
This 10-minute by Kent Bergsma will help you install an oversized filter mounted on an aluminum bracket in the engine compartment of your old 1977 to 1985 Mercedes diesel for the purpose of running vegetable oil. This video is included free with the purchase of our kit below.
In this 20-minute step-by-step instructional video, Kent will show you how to remove your early LH-Jetronic M119 fuel delivery system, overhaul it on the bench using our FID6 kit, and reinstall it back under the rear of your Benz.
These 17-minute video instructions are now included with Kent's basic and deluxe Version 3 fuel injection pressure tester. You will learn some tips and tricks on how to pressure test an M103 fuel-injected 6-cylinder engine using one of our test kits.
These 8-minute video instructions are now included with Kent's basic and deluxe Version 3 fuel injection pressure tester. You will learn some tips and tricks on how to pressure test a 1976 to 1985 fuel-injected V8 engine using one of our test kits.
These 6-minute video instructions are now included with Kent's basic and deluxe Version 3 fuel injection pressure tester.
In the 14-minute video, Kent will show and explain his new version 3 fuel system pressure tester released in January 2025, and will demonstrate briefly how it is hooked up to the D-Jetronic, K-Jetronic, and KE-Jetronic fuel injection systems.
In this xx-minute instructional video, Kent will explain and demonstrate how to change and deal with the end fittings on the high pressure lines used on the Mercedes airmatic suspension from 2000 to 2013. Examples shown are filmed on a W220 S500.
Cleaning the throttle body on 1998 to 2013 V6 and V8 engines can yield amazing results with improved idle, power, acceleration, and fuel economy. To do it, you must remove the MAF and the intake elbow that attaches to the throttle body on the back of the intake manifold.
Why is this not regularly done? Why don't a lot of shops recommend it? The results can be dramatic with regard to engine smoothness, acceleration, and fuel economy. What about the reports it can damage the engine?
In this 5-minute demonstration video, Kent will show you how to replace the exhaust hangers on a 2010 W221 S550. This is an easy DIY job and should be done at your 100,000-mile inspection. 272273
In this 15-minute instructional video, Kent will demonstrate the use of his unique bushing press tool on a W221 S550. He calls this the "hidden bushing" as you can not see it, and it is tough to inspect its condition without dropping the control arm.
In this 14-minute instructional video, Kent will show you all the components of the engine's air injection system, how to inspect and test them individually, and how they work in concert with each other. This is definitely something you would want to add to your own 100,000 inspection.
In this 10-minute video, Kent will explain the operation of these two valves on top of the front of the engine, how to test them, and how easy it is to replace them. If you are having problems with your electric air pump wearing out prematurely, the problem may be these valves. 272273
In this short 3-minute video, Kent will show you a trick that few know about. You can get those tapered shaft ball joints ( like to find on tie rods and control rods) loose without damaging the rubber boot. It can be faster and less painful than using traditional methods.
In this short 3-minute video, Kent will share a few tips that will aid you when installing new front subframe mounts in the 1972 to 1989 R107 and the 1968 to 1976 W115 and W114. These are in addition to the PDF instructions he has written. ( see below).
In this extensive and highly detailed 32-minute video, Kent will walk you through the procedures of extracting power steering fluid out of your old tank and installing a new tank without spilling fluid all over your engine compartment.
Kent has come up with a new repair kit that will permanently fix your sagging and sloppy inside door pulls. This applies to all W123 and W126 chassis. New ones are very expensive if you can find them. Good used ones are getting harder to get.
In this 21-minute instructional video, Kent will show you how to access the MAF sensor and correctly clean it with the proper spray cleaner. This cleaner can be picked up at any auto parts store but must be specific for mass air flow sensors.
In this 14-minute instructional video, Kent will show you how to access the MAF sensor and correctly clean it with the proper spray cleaner. This cleaner can be picked up at any auto parts store but must be specific for mass air flow sensors.
In this 11-minute instructional video, Kent will show you how to correctly remove the intake elbow ( with mass airflow sensor), install a new seal that connects to the intake manifold, and replace the entire assembly back on the engine.
This critical maintenance item should be done every 40K to 50K miles - BUY it does not get done. In this xx-minute video, Kent will show you how to properly replace both oil separators without screwing up and breaking something inside the engine.