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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.

$196.50

Bosch CIS Fuel Injection Pressure Tester w/ Extras

For both K-Jetronic and KE-Jetronic systems on 1976 to 1993 Mercedes 4, 6, and 8 cylinder gas engines. Comes with complete video instructions on how to hook it up properly, get the fuel pumps running, and read the required pressures.

This is Kent's new offering for an accurate and leak-free DIY CIS fuel pressure tester. If you have been confused as to how to even hook one up, let alone what pressures to look for - this is what you have been looking for.  If a picture is worth 1000 words, what is a video worth?

$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?

$2.50

LATE Bosch CIS 6 Cylinder Fuel Injector to Holder Seal

For 1986 to 1993 M103 6 Cylinder from 061403, all M104 engines with CIS KE-Jetronic Fuel Injection

This is a critical rubber part that seals the fuel injector to the injector holder. Deterioration can result in high idle speeds and poor engine performance. Unless you have a low mileage car with soft seals, these should be changed when testing, cleaning, or replacing your fuel injectors.

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
$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
$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.

$39.95

1981 to 1991 V8 CIS Fuel Injector Plastic Sleeve Holder x 8

For 380 420 500 and 560 gas V8 engines- Top seals sold separately

These are the plastic bushings that hold fuel injectors into the head of the late M116 and M117 engines. These get very brittle with age. If you are planning on removing your fuel injectors I highly recommend you order these to have on hand.

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.

$62.95

CIS Gas Fuel Injector Cleaning and Testing Conversion Add-On Kit

You MUST HAVE a version 3 pressure tester ( either diesel or MFI) to make this kit work on most 1977 to 1993 Bosch Mechanical ( NOT ELECTRIC) fuel injectors

We know that many of you own multiple Mercedes, including both gas and diesel models. If you own one of Kent’s fuel injector pressure testers you no doubt will want to test all your applicable mechanical fuel injectors in both types of older engines.

Sale
$15.00

Misc. NON BOSCH CIS Fuel Pressure Tester Fittings and Hoses

None of these will work on Mercedes K-jetronic or KE-jetronic engines. They will work on other makes and a few fittings on later model Mercedes - Special Deal - NO INSTRUCTIONS.

Here is a grab bag of fittings and hoses you can buy for DIY projects. Since we don't have use for these at this time, we are offering them at a special giveaway price. PLEASE BE AWARE THAT NONE WILL work without modification on any CIS fuel-injected engine.

$399.00

6 Cylinder M103 M104 CIS Fuel Delivery FID Overhaul Kit

For 1988 to 1993 M103 and M104 CIS powered cars (W201, W124, R129 and W126 chassis)

Most 1988 to 1993 6 cylinder CIS fuel injection delivery (FID) systems are old and tired and have not been properly maintained. These include the W201 190E 2.6, the W124 260E 300E, 300CE, 300TE, the W126 300SE, and 300SEL, and the R129 300SL.

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
$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.

On Demand Video
$12.99

CIS Gas Fuel Injector Tester Setup and Operation - On Demand Video

Introduction to Version 3 of Kent's popular testing explaining the upgrades and how they are used.

In this short video, Kent will give you an overview on setting up and using Version 3 of his bench mount CIS gasoline injector pressure tester.

$22.50

1976 to 1980 C.I.S. 107 123 All 116 Gas Engine Fuel Filter

For above chassis only 6 and 8 cylinder gas engine 1976 to 1980 - not for electronic fuel injection (D-jetronic)

New Bosch fuel filter as shown. Before ordering please make certain that this fits your Benz. Not all gas fuel filters are created equal.

$24.75

Early Gas Engine Fuel Injector Back Flush Cleaning Kit

Works on Bosch MFI and CIS mechanical fuel injectors from the late 1950's to early 1990's. Will NOT work on electrically operated fuel injectors.

With these old gas fuel injectors, sometimes you just have to "back flush" the insides to restore them to peak performance. There is no guarantee that back flush cleaning will restore every old gasoline mechanical fuel injector. Some are just plain worn out.

On Demand Video
$14.99

Early Gas Engine Fuel Injector Back Flush Cleaning Instructions - On Demand Video

Video is free with purchase our DIY backlash cleaning kit - works on mechanical gas injectors from the late 50's to early 90's

This 24 minute on demand training video comes with our injector back flush cleaning kit. You can purchase this video separately, but please keep in mind you will not have any of the tools or supplies to complete this procedure yourself.

$38.00

D-jetronic Fuel System Pressure Test Adapter Hose and Depressuriization Kit

Allows you to use our CIS Fuel Pressure Tester to test system pressures on 1970 to 1975 D-jetronic fuel injection engines

Must be used with our CIS fuel system pressure tester. See related products below for more information or to order.  This kit will allow you to depressurize your 1970 to 1975 D-jetronic fuel rail and attach our CIS tester to the included adapter in order to test your D-jet fuel pressure.

$64.50

DIESEL Conversion for Your Version 3 Gas Engine Fuel Injector Tester

For testing mechanical diesel fuel injectors with your newer Version 3 MFI or CIS gas injector tester

If you acquire an older Mercedes diesel and want to test those large Bosch injectors with your V3 gasoline bench tester, you  will need 4 things to complete the conversion: 3000 PSI gauge, our new capture bottle to hold the larger injectors, injector sealing kit, and Kent’s written manual and vid

$58.50

Early MFI Mechanical Gas Fuel Injector Cleaning and Testing Conversion Add-On Kit

You MUST HAVE a version 3 pressure tester ( either diesel or CIS) to make this kit work on most 1959 to 1972 Bosch Mechanical ( NOT ELECTRIC) fuel injectors

We know that many of you own multiple Mercedes, including both gas and diesel models. If you own one of Kent’s fuel injector pressure testers you no doubt will want to test all your applicable mechanical fuel injectors in both types of older engines.

On Demand Video
$16.99

How to Test the EHA Valve on Bosch KE-Jetronic Fuel Injected Engines - On Demand Video

Factory training manual procedure followed step-by-step. You will be surprised by what Kent found on this 560SL engine.

In this 13-minute CIS training video, Kent will walk you through the steps recommended by Mercedes Benz to fully test the operation of the EHA valve on 1984 to 1993 4, 6, and 8-cylinder engines with KE-jetronic fuel injection.

$298.00

KE-Jetronic Fuel Injection Electro Hydraulic Actuator Valve (EHA)

Genuine Bosch Part. For 1986 to 1993, 4, 6, and 8-cylinder gas engines with CIS fuel injection

This is the critical part on KE-jetronic fuel injection to balance the fuel mixture between cold and warm starts. When it totally fails your engine may not run right at all. It took the place of the old warm-up regulator on the earlier K-jetronic fuel injection from 1976 tp 1985.

$48.00

KE-Jetronic Fuel Injection Troubleshooting Multimeter w/ Special Attachments

Free on-demand video included on testing the EHA valve and related circuits. Kent believes this is the best tester for the buck.

This high-quality meter can test all types of automotive electrical circuits, but Kent has discovered it is particularly well suited for testing Bosch KE jetronic fuel injection components on those CIS models from 1984 to 1993. Extra adapter fittings are included as shown.

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.

$48.50

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.

$21.75

Fluid Maintenance - Radiator and Fuel Hose HD Pinch off Pliers

A must when changing rear mount fuel filters and pumps. Best tool for secure clamp-off in tight locations. Works on fuel hose, coolant hose and even big radiator hose.

I have used a lot of different clamping tools over the years to prevent fluids from leaking out when removing coolant, fuel, or brake fluid hoses. Most work ok. Some are hard to use in tight places.  Many do not stop every last drip from coming out of the hose.

$285.00

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!

On Demand Video
$5.99

No Cost Steps to Fixing an Engine's High Idle Speed Problem - On Demand Video

Kent is always amazed at how often it is the simple things! You won't believe how easy it was to fix this engine!!

This video will be an excellent example of how to save big $$$ doing the work on your own car. If your gas engine is idling too fast in neutral it could be an expensive problem, but in many cases it is due to lack of maintenance over a long period of time.

$32.75

Diesel and Gas Fuel Injector Pressure Tester Conversion Kit: Upgrade to Version 3

Converts your old style Version 1 or Version 2 tester to a single bottle flow-through operation with exhaust vent. Will work with our older diesel, CIS and MFI gas fuel injector testers

With this kit, you can convert your older pressure tester to all the benefits of Kent's newest version 3 "pop tester." It contains everything you need and you can do it in less than 10 minutes. 2 videos are included with purchase. One explains how to perform this simple conversion.

$30.99

Gas Engine Spins But Won’t Start - Video Class with Kent Bergsma

Watch all seven videos in this series - and learn how to get your gas Mercedes starting and idling better.

Too many emails on this subject pretty much forced Kent to do this almost 3 hour long video class. If you are having problem starting your old 1976 to 1993 Mercedes with Bosch C.I.S. fuel injection this is a must see.

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.

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.

$22.80

1981 to 1991 M116 M117 V8 Updated Fuel Injector Sleeve Seals - Full Set

Fits V8 engines 380, 500, 420, 560 with Bosch C.I.S. Fuel Injection with fume vapor holders as shown below

Upgraded top seals for better and longer-lasting sealing properties and well as standard green seals for the bottom of the injector holder. With these seals you can clean and reuse your existing fuel injector holders / sleeves.

On Demand Video
$2.99

How to Install Our Injector Pressure Tester Conversion Kit

Shows how to upgrade your Version 1 or Version 2 tester to our Version 3 with fume capture bottle.

This video only applies to our injector pressure tester. Kent will show you how to attach the capture bottle and fittings to your older Version 1 or Version 2 pressure tester. Video is free with purchase of the conversion kit.

$38.00

R107 Late 450SL 380S 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.

$98.50

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.

$118.50

R107 380SL 380SLC Distributor Cap and Rotor Set

Fits all 380 gas V8 from 1981 to 1985 380SE 380SEL 380SEC 380SL and 380SLC

This is one of those severely neglected parts that seem to never get changed. This is the FIRST thing you want to look at when the engine won't start, starts and quits, or misfires on and off. This is a quality German-made aftermarket cap with Genuine Bosch Rotor.

$52.50

Later R107 Spark Plug Complete Installation Kit

Best Plugs, best tools, and best procedures for 1977 to 1989 models with CIS (mechanical) fuel injection systems.

Do not let anyone convince you to install some super platinum, iridium or kryptonite spark plug in your later model R107 SL V8. They are just not capable of handling the richer fuel mixtures associated with these older engines.

$36.95

On Demand 5 Video Sampler by Kent Bergsma

Five of Kent's most popular videos so you can see just how "in depth" they really are and save $20.00!

If you have been enjoying Kent's free Youtube videos but have not yet purchased and watched one of his on-demand "meat and potatoes" videos, we guarantee you are really missing something.

On Demand Video
$12.99

How to Replace the Older V8 Distributor Cap and Rotor - On Demand Video

Don't make the common mistake! Applies to all M116 and M117 V8 engines from 1970 to 1991

Replacing a distributor cap is easy right. No problem?? If it were I would not get so many emails and why the engine won't run right after changing the cap and rotor. This is a short eight and a half minute video but the tips I share could save you some big headaches.

$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.

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