Kent's Factory Service Manuals collection is going on sale now. CLICK HERE.
This is a perfect fit for the O.E. copper sealing ring. You only need one but we sell these as a set of two so you will have a spare.
This is where this sealing ring is located. On top of the fuel injection lift pump and at the base of the hand primer pump:
Very high-quality steel. Original Napa branded.
This video will cover the use of my custom plastic tool to safely remove the steel center section for the outside aluminum housing with rebuilding your older style SLS ( Self Leveling Suspension) hydraulic pump. No other instructions included here.
These are the 4 long bolts that need to be removed when changing your W126 brake rod control joint on your front suspension. There are two on each side. They do not come in the repair kit so if you bolts are very rusty you might want to have these new bolts on hand before you start your repair.
Kent finally went to work to solve the problem of rusty water pump mounting bolts. Once the problem was studied carefully the solution became obvious. Watch the video for a full explanation and partial instructions below.
Kit contents:
I do not need to say much about this tool. Well made and well thought out. Someone who obviously was frustrated at scratching the finish on his or her alloy wheels came up with this idea. Watch the video below to see why this is now my favorite go it 17 mm lug bolt socket.
This is something many owner's and mechanics miss. That little check valve on the side of the injection pump can cause a lot of starting problems on the older diesels.
Many owners are surprised to learn that their early ML's hood can actually be adjusted to go almost straight up. It is not as easy to do as some of the earlier models where you only had to flip a couple levers.
Connect this small filter with attached hoses to the back of the injection pump and to the brown plastic vacuum line going to your ignition switch under the dash. The filter will do two things. 1. Help to trap oil coming out of a leaking shutoff valve before it gets to your ignition switch. 2.
If you have a 1969 to 1985 4 or 5 cylinder diesel (except the 1984-85 190D) you may have already noticed it is hard to get the valve cover totally sealed from weeping oil stains coming out the bottom or top of the valve cover gasket.
In this video Kent covers the removal and replacement procedures for the sunroof air dam or otherwise known as the air deflector. Using a special technique and a plastic trim tool can prevent damage to the plastic clips. He also covers troubleshooting the reasons for improper operation.
The Monark nozzles #120 are all gone, never to be remade. We do have a few hundred #128 nozzles still available. Kent and Kaia got together and started questioning why they would not work in the OM616 and OM617 engines. So in May of 2024 Kent decided to put them to the test.
The Monark nozzles #120 are all gone, never to be remade. We do have a few hundred #128 nozzles still available. Kent and Kaia got together and started questioning why they would not work in the OM616 and OM617 engines.
These instructions are part of our wagon rear hatch strut replacement kit and a printed copy is included free with the purchase of that kit (see related products below). Downloading and reading these instructions will explain how to do this repair yourself.
Instructions to walk you through removing the instrument cluster with the special tool and bulb replacement. PDF download is 2 pages and contains detailed pictures.
For use on 220 240D 300D 300CD 300TD 300SD 1968 to 1985. NO INSTRUCTIONS INCLUDED: The tool is meant for someone who has the factory manual or who already knows how to adjust their injection pump timing on the older diesel engines. Injection pump timing is critical for peak performance.
January 2019 notice: This filter is now available only in very limited quantities and may not be readily available in the future. This is why we are not able to include it in our full fluid flush kit ( See related products below) This is an often neglected filter.
SPECIAL ORDER PART -- MAY BE UP TO A WEEK BEFORE SHIPPING!
This GENUINE MERCEDES switch will work on all 107 chassis 380SL and 560SL 1981 to 1989, all 126 chassis sedans and coupes 1981 to 1991 , all 123 chassis 240D 300D 300CD 300TD from 1980 to 1985, all 201 chassis 190E 2.6 and 190D ( 190E 2.3 up to 1988 ONLY) and all 124 chassis from 1986 to 1993.
WILL NOT FIT 85 CALIFORNIA MODELS!! It will fit some 1985 Federal Models only.
Some of the most common auto transmission leaks on the early automatics come from the banjo bolts that connect the filler tube to the bottom of the pan and the two transmission coolers lines to the lower front transmission housing.
Fits the Following: Late 126 201 124 chassis, Gasoline Models only! 1982-1983 380SEC, 1984-1985 380SE, 1984-1985 500SEL, 1987-1993 190E 2.6, 1986 to 1989 300E, 1990 -1993 300E 4matic, 1990-1992 300CE, 1988-1991 300SEL, 1992-1993 400E, 1986-1991 420SEL, 1986-1991 560SEL / SEC.
If your glove box won't stay closed due to a broken plastic panel inside, then this is the part you may need to fix the problem. The latch inside this panel is mounted on a plastic pin, and when this pin breaks off, there is no good way to repair it.
Set of four (4) new factory door striker bolts. It is very easy to round these off. If you are planning on removing or adjusting your strikers and want the original style hex bolts you should have extras on hand.
Kent uses his 1976 240D that had sat idle for 6 years to demonstrate what needs to be done to get an old fuel system cleaned out and serviced properly. This always includes installing new fuel filters and sometimes will require replacing some of the rubber hoses.
Excellent used factory original sunroof air dam wind deflector.
Fits all models 1976 to 1985 with a wood shift cover. 240D 300D 300CD 300TD 230E 280E and 280TE. A very common issue that plagues almost all W123s. The factory pin in the back on the wood shift cover seems to always break off, leaving the wood piece loose in the center console.
Removing the front rubber engine mounts requires getting under the car and going up inside a hole in the subframe to remove the main bolt. And it can be a bear! I don't know who they hired to tighten these at the factory, but he must have been a brute.
PLEASE NOTE In stock now and ready to ship. No detailed instructions at this time, but it is not a difficult install this unit once you remove the false firewall at the back of the engine. You will be able to gain access to the monovalve and electric pump assembly.
In this on demand video you will get to watch Kent remove the cylinder head from his 1990 R129 300SL with the 104 twin cam straight 6. This is a highly detailed video on how to do it without making the mistakes that many others have made. The job must be done with understanding and great care.
In this long video manual Kent will walk you step-by-step through the process of removing the older square style leveling valve from your Mercedes, opening it up without losing the spring and balls, removing the old o-rings and cleaning the parts properly, installing the new o-rings, and putting
If you are going to work on your diesel fuel injectors, you are going to need a torque wrench. If you are going to tighten your alloy wheel lug bolts properly, you should use a torque wrench. In fact, if you do your own work, you should have a 1/2-inch clicker torque wrench in your toolbox.
Why would you need to remove a fuel tank? If it is heavily rusted or contaminated sometimes it is just easier to find a good used fuel tank and replace it. Trying to clean a heavily gummed up fuel tank is a real challenge.
Car alarms have their place, but on 20 year and older cars Kent is not so sure... When they get that old they can get very tempermental and will usually go off when you least expect it and in places that can cause great embarrassment.
Fits all 380SL and 380SLC from 1981 to 1985. This flexible fuel hose connects the outlet of the fuel filter to the metal hard fuel line going from the rear of the 380SL to the engine compartment. This hose is hard to install and hard to inspect.
These will fit all 1976 to 1991 4.5, 3.8, 5.0 and 5.6-liter V8 engines with Bosch C.I.S fuel injection. PLEASE NOTE: These spark plugs have an aluminum end cap that does screw off. You will receive the plugs with the end cap installed.
These will fit all 1970 to 1975 3.5 and 4.5 V8 engines with D-Jetronic fuel injection (electronic). Do not use NGK, Platinum or any other kind of "special" spark plug. You will be sorry. Use only these Bosch Super plugs.
Kent's procedure uses the factory recommended "drip tube method" but with a "twist." He has devised a way to get accurate and consistant IP timing results while trying to get the drip tube to drip at one drip per second exactly when it should!
Would you like to find out how well your old (1959 to 1972) mechancial gasoline fuel injectors are working? Now you can do it yourself at home with our custom bench mount hand pump pressure tester and cleaning kit. These are the full instructions that come FREE with the kit.
This 3-part hour and 27-minute video series should answer most of your questions concerning completing a coil-over shock absorber conversion on your 2003 to 2006 SL500.
All 280SL 450SL 380SL 1972 to 1985. All 230SL 250SL 280SL. All 108 and 109 Sedan from 1965 to 1973 including 280SE/L 5.4 and 300SEL 3.5 and 4.5. All 114 and 115 sedans and coupes from 1968 to 1976 including 220D 240D and 300D. We are now offering a kit with 2 new tie rods.
You can save a lot of money if you can rebuild your old brake calipers, especially on some older models. If you can just get the pistons out of the housings, most calipers are rebuildable, unless they have been subject to road salt or have sat exposed to the weather for years without use.
Digital 4 page PDF instructions. Detailed pictures and step by step instructions to assist you in completing the suspension guide rod bushing replacement.
FITS THE FOLLOWING: 115, 116, 123, and 126 chassis. Here is a diesel item I have put together that every Mercedes diesel owner should have.
This custom-made thin head wrench by Kent Bergsma can save the day and your pocketbook. It is very important that you hold the fitting base on the oil cooler when removing the oil cooler hoses. A regular 22mm wrench is almost always too thick and can also cause damage.
FITS THE FOLLOWING all 123 chassis from 1977-1985 which include the 230, 240D, 240TD, 280E, 280CE, 300D, 300CD and 300TD.
Fits all 126 chassis sedans 1981 to 1991. Depending on the type of regulator you have it may or may not apply to all four of your doors. Recommend you remove the door panel first to inspect (see below).
Glow plugs do not last forever. I have found they generally need to be replaced about every 2 years for peak performance.
Ever wish you could find a good way to lube the door hinges on your old Benz? Maybe you have seen that little fitting wondering what it is, or maybe you have heard there is a special grease gun that can inject grease into that fitting?
In this video Kent shares his technique for removing a padded steering wheel on most 107, 114, 115, 116, 123, 126, and 201 to 1985 chassis. These are the models WITHOUT an airbag.