M110 6-Cylinder Fuel Injection Pressure Tester with Instructions

Store > K-Jetronic Fuel Injection Products
For all fuel injected 280 engines from 1976 to 1985.

Why do a fuel system flow and pressure test? Without one, you will not know if your fuel injection is working properly. This is even more pronounced on K-Jetronic engines that incorporate a warm-up regulator.  And guess where that is located on the M110 engine? Watch the YouTube video below, and Kent will explain why he has a specific fuel system pressure tester just for the M110 engine.

M110 6-Cylinder Fuel Injection Pressure Tester with Instructions
$168.00
SKU:
GEG-M110FIT
Free Add-Ons Included:

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

How to Adjust That Troublesome Little Screw on you 1976 to 1993 C.I.S. Fuel Injected Engine That Won't Run or Run Right

M110 K-Jetronic Fuel Pressure Tester Hook-Up Instructions - On Demand Video

M110 K-Jetronic Fuel Flow and Pressure Test Procedures - On Demand Video

Product Details

Kent explains why a separate tester is needed

Included with the basic test unit. Special fittings are only available here and are modified by Kent in our shop. 

FOUR EXTRAS will be included with this kit to increase the ease and accuracy of your tests.

  • 12-volt power test lead for the warm-up regulator
  • Hose and fitting to attach to the fuel distributor for the fuel flow test
  • Short switched jumper lead to use on the W116, W123, and W126 with a relay near the firewall.
  • Long 5-foot jumper lead for the fuel pump relay in the R107 ( relay is behind glove box ).

Do you have more than one Mercedes requiring different pressure testers? Are you not sure which one to order? Be sure to check out my ALL-IN-ONE kit that will test almost everything from the early 1970s to the late 1990s. See the related products below.

Related Products:

$68.00

M110 K-Jetronic Warm-UP Regulator Relocation Kit

For most twin cam 6-cylinder fuel injected engines from 1977 to 1985 - Re-mount the WUR where you can easily get to it.

This is a builder's kit and will require fabrication on your part. That means strap bending, location testing, bracket drilling, and WUR mounting. The kit comes with Kent's video instructions on how to do this and on how to hook up the electrical connector, vacuum hose, and two fuel lines.

$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 adjustments 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 in y

$249.99

All-In-One 1970 to 1997 Bosch Fuel Injection Pressure Tester w/ Lots of Extras

Covers D-Jetronic, K-Jetronic, KE-Jetronic, LH-Jetronic fuel injection testing and diagnosis. (4-cylinder 2.3 liter not included)

New in April of 2026. This is the "whole ball of wax," including 10 free on-demand training videos.  Kent put this kit together for those enthusiasts who own multiple classic Mercedes from the 1970s through the 1990s. Fuel Injection back then was not as reliable as it is now.