Search | R107 | Fuel Delivery

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On Demand Video
Mercedes Overvoltage Relay - On Demand Video
$3.99

Solving Rough Idle and Low RPM at startup on a 1986 to 1993 CIS Engine - On Demand Video

Sometimes this can be fixed for very little work and money - but other times NOT..:-)

This is a common occurrence as these gas engines with Bosch C.I.S. fuel injection age. Most of them are now at least 20 + years old. The problem goes something like this. You start the engine cold and it will hardly run. It runs rough and idles very low and will even quit a few times.

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?

$43.95
Currently out of stock.

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??

$444.00

1981 to 1985 380 and 500 V8 Complete Fuel Delivery Overhaul Kit with Free Video Instructions

Deluxe Kit for U.S. Models: 380SL, 380SLC, 380SEL, 380SEC, 500SL, 500SEL, and 500SEC. The fuel Accumulator and filter outlet hose are included. Save $48 buying the bundle.

This deluxe kit includes three products related to the rear-end fuel delivery system for the models mentioned. This is critical if you want to get one of these old V8 engines running properly, especially if it has not been running for a long time.

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:

$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.

$24.80

D-Jetronic Fuel Pump Protection Filter Inslallation Kit

For 1970 to 1973 W111 W108 W109 Coupes and Sedans and 1972 to 1975 R107 350SL and 450SL

Let's face it. These fuel tanks and now 50 years old and most are not squeaky clean inside. There is a fuel tank screen that will catch most particles if the screen is in good shape. But I have found that it will not catch the very fine rust particulates that are so common in these old cars.

$189.50

Bosch CIS Fuel Injection Pressure Tester w/ Extras

This is Kent's tester and video class packaged together. For fuel flow and fuel pressure testing on Bosch K-jetronic and KE-jetronic 6 and 8-cylinder CIS-injected engines from 1976 to 1991. Full six part video series included.

If you own or are restoring a CIS fuel-injected Mercedes, a pressure tester is a must-have! This complete kit will allow you to do it yourself with complete instructions. Why buy a tester that you do not know how to hook up and may not even be accurate?

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.

$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.

These will also fit the 1972 U.S. version 350SL with the 4.5 engine. Just make sure of the correct color. 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.

$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. 

$54.20

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

Kit does not include clamps for replacing short hoses on the fuel injectors. Correct German 7.5 I.D. 90 PSI Fuel Injection Hose ( 2 meters) and Stainless Steel HD Smooth Clamps (16).

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
$10.99

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.

$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
$29.99

How to Install New Fuel Injectors on a 1981 to 1991 V8 Engine - ON DEMAND VIDEO

For 380SEC, 380SL, 380SLC, 380 SE, 380SEL, 500SEL, 420SEL, 560SEL, 560SEC and 560SL from 1981 to 1985 with CIS fuel injection

This 33 minute video will instruct you on how to replace the fuel injectors in your 8-cylinder M116 engine safely and efficiently.  This is a fairly straightforward job, but there are some pitfalls you will want to avoid.

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.

$298.00

1981 to 1985 380SL 380SEC, 380SE, 380SEL Fuel Injector Replacement Kit

Includes new GENUINE Bosch fuel injectors, new injector holders, new seals, and new evaporator air hoses, cleaning supplies and full detailed video instructions

Why change K-jet injectors when "they are working?"  Why change shocks when they feel ike "they are working." The deteration is very slow over time and you may not notice the difference in how the engine starts, runs, accelerates, and delivers mileage until you do this service!

$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.

$39.50

R107 Late 450SL 380SL 560SLFuel Tank Outlet Hose

Original braided style hose - 16mm I.D. - 1976 to 1989 107 SL. WITH CIS FUEL INJECTION. Also fits late 1976 to 1980 450SE and 450SE as well as W123 280E and 280CE with 16mm hose.

Fuel hose as shown. Connects to bottom of fuel tank and drops down to fuel damper. Make sure you do not have a 1975 or early 1976 with electronic fuel injection.

$58.50

Late R107 450SL W123 280E Factory O.E. FID T-Hose Assembly

This connects to the fuel accumulator located near the fuel pump and filter on some 1978 to 1980 models

This hose assembly was used on the fuel delivery systems in the late 1970s and early 1980s. Installed on some R107 450SL and 450SLC, W116 450SE / L  and 280SE, and the W123 280E and 280CE. Be sure to check your car before ordering to make certain this hose is installed.

On Demand Video
$16.99

Step-by-step 1977 to 1980 CIS Fuel Delivery System Overhaul Instructions - On Demand Video

On the bench: Covers most 450SL 450SLC 450SEL 280SE 280E 280CE and 280TE 1977 to 1980

Kent will take you over to his workbench and completely take apart a rusty and old fuel delivery system from a 1980 450SL and put it all back together again with some shiney new paint and parts supplied in his special kit for these cars. This video runs for 24 minutes.

$88.50

1986 to 1991 R107 and W126 V8 Fuel Injection Accumulator

Fits 420SEL 560SEL 560SEC and 560SL - also fits 6 cylinder M104 CIS engines 1990 to 1993 (300CE and 300SL)

Brand new aftermarket fuel accumulator for the 1986 to 1991 V8 engines. It is mounted near the fuel filter under the back end of the car and hardly ever gets replaced. What does it do and how do you know if it is bad.

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