Petrol injector K-Jetronic Ka-Jetronic Ke-Jetronic – Mercedes R107 W116 W123 W124 W126 W210 R129 W460 

Description

K-Jetronic, KA-Jetronic and KE-Jetronic – Important information regarding purchase and replacement

Injectors for K-Jetronic (also called KA-Jetronic or KE-Jetronic at Mercedes) are an important part of the mechanical injection system. These injectors have a relatively simple technical design, but they do contain precision parts that wear out over time. Therefore, K/KA/KE-Jetronic injectors are wear parts that must be replaced in time in vintage and classic cars.

Inside each injector is a small spring that ensures the injector opens and closes at the correct moment. Additionally, there is a small strainer inside designed to retain fine dirt. Because this strainer cannot be removed (without completely disassembling the injector) and because injectors cannot be cleaned against the flushing direction, these injectors are practically difficult to clean. Replacement is therefore usually the best and most reliable solution.

Suitable for all K-Jetronic injection systems.

Compatible with the following models and engine codes:

• Mercedes-Benz W107 280 / 350 / 450 with engine codes M103, M110, M116 and M117 (until 08-1985)
• Mercedes-Benz W116 with engine codes M110, M100, M116 and M117
• Mercedes-Benz W123 280E/CE/TE and 230E/CE/TE with engine codes M102 and M110
• Mercedes-Benz W124 with engine codes M102 and M103
• Mercedes-Benz W126 6-cylinder models with engine codes M103, M110, M116 and M117 (until 08-1985) with KA-Jetronic
• Mercedes-Benz W201 all models
• Mercedes-Benz R129 300 (129.060) with engine code M103.984
• Puch G-Modell W460 Bestelwagen 230 GE (460.228 / 460.229) with engine codes M102.987 and M102.981
  Year of manufacture: 03-1979 to 12-1991 — 92 kW / 125 HP — 2299 cc
• Puch G-Modell W460 230 GE (460.238 / 460.239) with engine codes M102.987, M102.981 and M102.998
  Year of manufacture: 03-1979 to 12-1991 — 92 kW / 125 hp — 2,299 cc — 4-cylinder petrol
• Puch G-Modell W460 280 GE (460.232 / 460.233) with engine code M110.994
  Year of manufacture: 01-1986 to 12-1991 — 110 kW / 150 hp — 2746 cc — 6-cylinder petrol

Injector replacement manual / What to look out for when replacing injectors 

1. Always work cleanly and carefully

• Prevent dirt or dust from entering the injection system.
• Never overtighten pipes.

2. Always check the fuel tank for rust or contamination first.

• Rust particles or dirt in the fuel tank can immediately damage the new injectors; this is not covered by the product warranty.
• Therefore, always check the tank and the fuel lines for contamination and damage first, and clean or replace if necessary.

3. Always replace the fuel/petrol filter

• New injectors must never be installed behind an old or clogged filter.
• A clean filter prevents immediate contamination of the new injectors.

4. Always replace injector sleeves and/or mounting rubbers

• Bad or old sleeves and seals cause false air, leading to poor engine performance.
• See also the article on fuel distributors for more explanation about false air.

5. Check for leaks after installation

• Start the engine and check all connections for fuel leaks.
• Ensure that pipes seal correctly and without problems.
• Also check for false air leaks.

New injectors can sometimes stick.

It sometimes happens that new injectors may stick slightly at first.

In practice, this problem usually resolves itself after short use.

Advice 

Our advice is to always test new injectors before installation. In our own Mercedes Classic Garage, we therefore always test the spray pattern of new injectors before installation.

Tip: For a small additional fee, we can pressure test the injectors for you before shipment, so you can be certain that they open and close correctly and have the correct flow rate.

Follow all prescribed procedures and have the work performed by a recognized specialist to ensure correct installation and, consequently, faultless operation of the high-quality replacement parts. Incorrect installation or minor contamination can immediately lead to malfunction of the injection system.

More information & videos

On our website, you will find extensive pages with explanations about injection systems and their components.

In addition, we have our own YouTube channel with clear instruction and explanation videos about K-, KA-, and KE-Jetronic systems. Ideal for additional background information or for better understanding the operation of the system.

Visit our website: stolkbalkbrug.nl