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$49.95

OM616 and OM617 Diesel Engine HIGH Pressure Injection Pump Timing Kit

Comes with HOUR LONG VIDEO instructions. Requires pressure tank for accurate and consistent results.

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!

$26.75

Diesel Fuel Injector Return Fuel Hose AND Brake Pad Service Tool

Easy way to remove and reinstall that hard to reach small injector fuel return hose and vacuum hose - AND works on brake pads too!!!

While working on the fuel injectors of a 240D this week, Kent finally decided he had had enough. After 20 years of fighting those fuel injector return hoses he decided he just had to come up with a tool to make the job easier. 2 hours later the tool was designed and the prototype made.

$32.95

Early 4 and 5 Cylinder Diesel Fuel Injector Hose and Injector Washer Kit

For fuel injector service on 220D 240D 300D 300CD 300TD and 300SD 1970 to 1985

Any time you are removing and replacing your fuel injectors you will need to change the return hose and the heat shield crush washers. If you don’t, you will have leaking hoses and possible compression leaks at the injector nozzles.

On Demand Video
$12.99

CIS Gas Fuel Injector Removal, Cleaning and Testing - On Demand Video Manual

How to know for sure how well your gas fuel injectors are performing (1976 to 1993 CIS ONLY)

If you think CIS fuel injectors can just be ignored, think again. Sure, your gas engine will continue to start and run “ok”, but you may find that it is not producing the power it once did nor the fuel mileage it once delivered.

$249.00

CIS Gas Fuel Injector Spray Pattern Tester and Nozzle Cleaner

NEW VERSION 3 release.. See application notes below:

Works on all models from 1977 to 1993 with the Bosch C.I.S Fuel Injection system - see models listed below: Now you can do it yourself on the bench with this inexpensive tester- Save big $$.  Ever wonder how well your old CIS fuel injectors are working?

On Demand Video
Bleeding a Mercedes Diesel - On Demand Video
$2.99

Bleeding the Air Out of a Diesel Engine Fuel System - On Demand Video

Needed when changing filters, injectors, fuel lines or heaven forbid - running out of fuel

If you are new to older Mercedes diesels and have not worked on them before, this is one of the first things you want to learn. Especially if you ever run out of fuel. Without knowing how to do this you will never get the engine started again!

$227.00

Diesel Fuel Injector Balance Pressure Tester - Yes, You Can Do It Yourself!

Version 3 release - Improved fluid handling design - Watch the video below for reasons behind the changes.

For all MBZ diesel engines 1950 to 1999. Designed by Kent Bergsma. These are built at Mercedessource to control quality and production demands. Each one is tested here in our shop before shipping.

$417.00

5 Cyl 617 Diesel Engine Fuel Injector DIY Rebuild Kit

You CAN rebuild your diesel fuel injectors yourself in your own garage!

5/25/22 update: The precision nozzles included are now  made for us by Wolfswerke-sachsen ( same company and same nozzle that was formerly branded as Monark). Yes!

$58.50

Diesel Fuel Injector Tuning Manual and Top Brass Tool Kit - Combo Special

Best tool kit to take apart and clean old fuel injectors. You might actually get them to spray well again without buying replacements

 Keeping your injectors clean and tuned is one of the best ways you can improve mileage in a diesel. Buy both Kents new manual Diesel Fuel Injector Cleaning and Testing Procedures and his Top Brass Custom Cleaning Tool Kit and save!

$43.95

116 123 126 Chassis Fuel Tank Outlet Screen Removal Socket

WORKS ON FUEL TANK SENDING UNITS TOO! Machined short for easier access and a sharper edge for better grip.

FITS all 116 123 Diesel and Gasoline,  and 126 chassis from 1977 to 1985. Finally a socket to remove your fuel tank screen that really works. Most correct size sockets tend to be SO BIG that they require 3/4 inch drive ratchets and extensions to use them. Who has those in their tool box??

PDF
$0.99

1976 to 1993 CIS Fuel Injection Trouble Shooting Guide

3 Steps to begin getting your old fuel-injected engine running properly, especially after long periods of storage.

 

Kent shares with you 3 key steps that you should consider doing to get your old fuel injected 6 and 8 cylinder engines running properly. These include:

On Demand Video
$8.99

How to Clean and Flow Test Your Old Gas or Diesel Injection Pump - On Demand Video

For old 1950 to 1985 Fuel Injected engines that have sat around and not run for years!

In this 9-minute instructional video, Kent explains how to set up his injection pump cleaning and testing kit ( available separately ), and use it to clean out old fuel injection pumps of gum and grime, and then how to test them to make sure they are delivery fuel through every line. 

$16.80

5/16" or 8 mm Fuel Hose Smooth Clamp Set of 16

Rounded edges keep from cutting hose. Best clamp to use for high pressure ( ie. D-Jetronic or other fuel injection )

Excellent quality zinc plated hose clamps as shown. These can be tighten with a straight blade screw driver or a 7mm socket or nut driver. 

On Demand Video
$6.99

Bosch CIS Training Series 6: Finding Follow-up Information to Help Interpret Test Results

For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

After completing the pressure test on your CIS engine, you discover a problem. But how can you find out how to isolate and fix it? This is going to require some research on your part. Start by learning how the system works and how each component plays a part.

On Demand Video
$14.99

Bosch CIS Training Series 5: How to Hook Up and Test KE-Jetronic Fuel Pressure

For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

In this video, you will see how the gauges are hooked up to a 560SL and how the pressures are read.  The length of this 30-minute shows the detail Kent has put into filming all the critical components of doing a KE-Jetronic fuel system pressure test.

On Demand Video
$14.99

Bosch CIS Training Series 4: How to Hook Up and Test K-Jetronic Fuel Pressure

For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

This video is specific to K- jetronic fuel-injected engines from 1976 to 1985. This includes the 350, 450, and 280 engines in the R107, W116, W123, and early W126 gas Mercedes. In this 29-minute video. Kent will show you how to hook up the gauge, run the fuel pumps, and complete the test.

On Demand Video
$12.99

Bosch CIS Training Series 3: How to Do Preliminary Fuel Flow and FD Leak Tests

For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

There are a few factory recommend procedures and tests you should do before you do an actual pressure test on a CIS fuel-injected engine. In this 20-minute training video, Kent will walk you through these procedures step-by-step.

On Demand Video
$10.99

Bosch CIS Training Series 2: Options to Get Fuel Pumps to Run with Engine Off

For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

To do proper system testing on CIS fuel injection, you must find a way to get the fuel pump or fuel pumps to run continuously without the engine running. This can not be done by just using the ignition key. In this 15-minute training video, Kent will show the options available to do this.

On Demand Video
$6.99

Bosch CIS Training Series 1: What’s Needed to Test K-Jet and KE-Jet Fuel Pressure

For 1976 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

This video will help you decide if you want to try to do a fuel pressure test yourself. It is a fairly simple DIY job but will all the confusion and misinformation on the internet; one would believe it is a complicated process that is hard to understand.

$189.50
Currently out of stock.

Bosch CIS Fuel Injection Pressure Tester w/ Extras

SOLD OUT - No Longer Available. Kent now offers a "short" kit so you can build your own and save $$. See related products below

If you own or are restoring a CIS fuel-injected Mercedes, a pressure tester is a must-have! This complete kit is not available, but now you can build your own. SEE related products below to purchase.

On Demand Video
$9.99

1970 to 1975 D-Jetronic Fuel Pressure Regulators: How They Work / How to Test - On Demand Video

There is a little mystery around these. I will open them up and show you how they work and what they really do.

People call these two units pressure regulators, but really only one of them is. In this xx minute video, Kent will explain how these are different, what each one does, how to adjust them, and how to test them with a hand pump vacuum tester. 

On Demand Video
$8.99

How to Depressurize a D-Jetronic V8 Fuel Injection Rail - On Demand Video

This you MUST do before unhooking any hoses on your 1970 to 1975 D-jet engine or I guarantee you will get sprayed with fuel in your face!

In this 8-minute video, Kent will show you how to quickly depressurize your D-Jetronic fuel system before doing any injector service, replacing any hoses, or hooking up our fuel pressure tester.

$89.00

1970 to 1975 3.5 4.5 D-Jetronic Fuel Injection Pressure Tester w/Extras

Fuel Pressure testing is a must for these engines even if they are running "OK." Comes with a free depressurization kit and 3 video instructions.

6/6/23 Update: Now with a liquid filled pressure gauge installed to increase accuracy and reliability. We customize, test and recalibrate this fuel pressure tester before we ship it.

$18.75

1970 to 1976 D-Jetronic Fuel System Depressurization Kit

Forget fuel pump relay, forget fuel pump fuse, forget getting under back of the car to disconnect the fuel pump. No engine cranking. No flooding cylinders with fuel. Easy 5-minute process with no spillage

This kit will put a smile on your face, especially if you have done it before the "old way." Watch the video below for full instructions on how to use this kit to do the fastest fuel system depressurization in the world!

$248.00

1972 to 1973 4.5 450 D-Jetronic New Replacement Fuel Injector Set with Extras

Bonus new seals and new upper clamps included with the injectors. Kent's on-demand video on D-jet fuel injector service is included free of charge.

WARNING: MAKE CERTAIN your current injectors are blue/green at the top. A restocking fee will apply if you place an order in error. These are for the 4.5 engine only. See related products below for the 3.5. A video is worth a few thousand words.

$8.90

Fuel Hose Special External Coil Wire to Prevent Kinking and Chaffing

Can be cut to 4 to 5 smaller lengths and stretched for various applications on 7mm, 7.5mm and some 8mm internal diameter fuel hose.

This can do amazing things for your new fuel hose installaton on your old Benz engine. Watch the video to learn more. Sold individually in approximately 6 inch lengths.

$14.60

1970 to 1975 D-Jetronic Fuel Injector Hold Down Bolts and Washers.

New zinc plated bolts to match the original color of most Mercedes D-jet engines. See video below

Set of 8 correct size bolts and washers to spruce up the engine compartment of your D-jetronic V8 engine. Watch the videos to see how these actually look installed. 

$32.00

1970 to 1975 D-Jetronic V8 Engine compartment Fuel Hose Replacement Kit

Full kit. Includes enough hose and clamps to replace all 8 rubber supply fuel hoses. DOES not include the 8 short hoses and clamps for the fuel injectors. See related below.

These engine supply fuel hoses are critical to the well-being of your engine. I have seen too many rotten and deteriorating hoses on these D-Jet engines that could easily lead to an engine fire, and they just do not get replaced when they should.

On Demand Video
$16.99

1970 to 1975 D-Jetronic Fuel Injection Repair / Service Instructions - On Demand Video

A commonly neglected service that can lead to poor running and possible engine fire. It is the rubber parts that fail! See video below to believe it!

In this 36-minute instructional video, Kent will walk you through the process of doing a complete fuel hose replacement and fuel injector service on a 1970 to 1975 Mercedes V8 engine with Bosch EFI electronic fuel injection.

$38.75

1977 to 1983 280E 280CE 280TE 280SE 280SL Fuel Injector Seal Replacement Kit

Seals only as shown. Complete kit with injectors available below:

If you are removing and replacing your M110 fuel injectors these are the seals you should have on hand. Always replace the rubber seals. I know it is possible to reuse the plastic sleeves but many times they are brittle and will be damaged upon removal.

On Demand Video
$4.99

How to Test Your Fuel Accumulator - ON DEMAND VIDEO

Has your rear-mounted fuel accumulator failed on your 1976 to 1993 K-Jetronic or KE-Jetronic fuel system

In this 9 minute instructional video, Kent will explain how to test your fuel accumulator to determine whether or not it has failed internally. A failed accumulator will make your engine hard to start when hot.

$88.50

Bosch D-Jetronic Fuel Injector Service Kit

You will need this if you plan to remove and test or replace the EFI fuel injectors in your 1970 to 1975 Mercedes

This is the most complete 1970 to 1975 V8 injector repair kit you can find anywhere.

$129.75

Bosch D-Jetronic Fuel Injector Testing and Cleaning FULL Kit

This includes the required pressure tank for accurate testing. For 1970 to 1975, D-jet electronic fuel injectors - Ready to clean and test your injectors?

This will give you everything you will need ( except 12-volt power and cleaning fluid ) to bench clean and test your D-jetronic fuel injectors in your own garage or workshop once they are removed from the engine.

On Demand Video
$14.99

K-jet Warm Up Regulator Modification: External Pressure Adjustment - On Demand Video

Kent will demonstrate how to drill and tap the cold start adjustment pin so you can adjust it without having to take WUR apart again and again.

This xx minute video will take you step by step through the process of modifying your warm up regulator so you will be able to easily make adjustments to your cold start control pressure.

$79.95

Bosch D-Jectronic Fuel Injector Testing and Cleaning PARTIAL Kit

For 1970 to 1975, electronic fuel injectors. A pressure tank is required. See notes below. Full kit is available if desired.

With the required pressure tank you will be able to individually test and clean our D-jet fuel injectors. Along with a 12-volt power source, you will need I gallon of cleaning fluid as described in the instructions.

$28.75

K-jetronic Warm Up Regulator Cold Start Modification Kit w/ Video Instructions

A good mod to make if you are rebuilding your WUR. Will allow you to adjust cold start pressure up or down without having to take the unit apart repeatedly.

Before you make this modification you should be very familiar with the function of the WUR and how its pressure adjustements affect the performance of the K-Jetronic fuel injection systems. The tools and supplies offered in this kit will allow you to modify your warm up regulator at home and it y

$6.80

Fuel Tank Screen Seal 0-Ring Genuine O.E.

Fits most fuel tank filter screens from 1973 to 1995 All W116 R107 W126 W123 W124 and W201

New Mercedes o-ring as shown. Always replace this seal when removeing and cleaning your fuel tank strainer ( screen ).

On Demand Video
$22.99

How to Install New Fuel Injectors in a 450 M117 Engine - ON DEMAND VIDEO

For 1976 to 1980 450SL 450SLC 450SE 450SEL from 1976 to 1980 with CIS fuel injection

This 25 minute video will instruct you on how to replace the fuel injectors in your 1976 to 1980 8-cylinder M117 engine safely and efficiently.  This is a fairly straightforward job, but there are some pitfalls you will want to avoid.

$234.50

1976 to 1980 450SL 450SE 450SEL Fuel Injector Replacement Kit

Includes GENUINE Bosch fuel injectors, new holder seals, cleaning supplies, and video instructions. ( Plastic injector holders no longer included NLA )

PLEASE READ BEFORE ORDERING:  The plastic injector holders are no longer availabe. The video instructions will show we include them in the kit so PLEASE disregard. You will have to use your old holders and install the new green seals we include.

On Demand Video
$19.99

How to Install New Fuel Injectors in an M110 Engine - ON DEMAND VIDEO

For 280SE, 280SEL, 280SL. 280E, 280CE, 280TE 1976 to 1985 with CIS fuel injection

This 16-minute video will instruct you on how to replace the fuel injectors in your 6 cylinder M110 safely and efficiently. Since this is a fairly straight forward remove and replace this is not a step-by-step video.

$198.75

1977 to 1983 280E 280CE 280TE 280SE 280SL Fuel Injector Replacement Kit

For the M110 6-cylinder engine. GENUINE Bosch fuel Injectors, holders, and seals with free cleaning supplies and free video instructions

This is every thing you need along with free video instructions by Kent Bergsma. Why change the K-jet fuel injectors in your M110 engine. One thing is they are very old. Second this is right now they are readily available and resonably inexpensive.

$9.75

Custom 17mm Crowfoot Wrench for Bosch Hand Primer Pump

This is the bench to safely remove and install this style of hand primer pump. It will not damage the aluminum housing nut.

We modify this wrench right here in our shop. If a picture is worth a thousand words, what is a video work. Watch the following for a full explanation.

$5.80

8mm ( 5/16 inch ) Fuel Hose End Pugs x 4

Use when disconnecting a fuel hose to prevent spillage on your engine or floor!

You would be amazed at how much fuel can leak out of a fuel hose when you disconnect it from your tank or engine. This is an easy way to prevent messy spills.

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