For 123 Chassis 300TD, 201 Chassis 190E 16V and 126 Chassis 560SEL
This SLS manual was written specifically for 123 300TD wagon owners, but also applies to the models mentioned above, 300TDs from 1979-1985 and other chassis above up to 1990. If you own or are planning to purchase one of these popular wagons, I guarantee at some point you will have to deal with the SLS (Self Leveling Suspension) system. PLEASE NOTE: If you have a 1987 to 1995 124 chassis wagon this manual will only cover basic principles of troubleshooting. It does not cover the pump or the rear sway bar which are different on 124 wagons.
Of all the upgrades for diesel engines that we offer on this site, I believe changing over to Monark injector nozzles will give you more performance improvements for the money that any other single product. From our own diesels to the glowing reports we hear from our customers - you may have a hard time believing just how true this claim is until you experience it first hand! And Monark nozzles are probably the last of a breed. Yes, they are still manufactured in Germany...
Recently, I set out with the goal to provide our customers with all the resources they would need to troubleshoot and repair the brake systems on their own cars. As your favorite Benz ages brake problems will arise and they can sometimes be difficult to diagnose. Since brakes are a safety related system it is also VERY important that any repair work be done properly and with great care.
You are looking at the worlds first production diesel mechanical fuel injector bench tester available in the U.S. for under $200. These are built at the Mercedessource shop to control quality and production demands. This bench mount pop tester will allow you to economically test the spray pattern and fine tune (balance) your fuel injectors at home. With the injector fitting included it will work on all Mercedes diesels from the early 1960s up to 1993. This includes chassis 110, 115, 116, 123, 126, 201 and 124 and models 200D 220D 240D 300D 300CD 300TD 190D 300SD 300SDL 350SD.
If you are going to change a water pump on a 103 engine you will need this tool or you may never get the pump off. The hours wasted can lead to extreme mental meltdown (I speak from experience :-) ). Access and clearance is so tight that a normal 3/8 inch drive extension and universal will not work. This is a quality set of tools put together for you to work right from the start. The socket is Craftsman and the extensions and universal with adapter are Stanley. Partial instructions included.
This tool comes only with instructions to get on and to remove the water pump bolts. It DOES NOT come with complete instructions on removing and replacing the pump. Those instructions are in the works and will be available soon.
For the month of February we have put all our Bilstein shocks on sale for the lowest discount we have ever offered. Now is the time to get ready for summer touring. We offer both the comfort and the heavy duty shocks. Yes, there is a marked difference between the two. If you are not aware of the difference or would like Kent's recommendation be sure and click on the video link below.
Also check out Kents videos on installing shocks on some models. These can best be accessed through the TECH HELP at the site menu at the top of this page.
CLICK HERE to view all the Bilstein Shocks we currently have on SALE!
Kent is often asked what are the most important SEALANTS AND ADESIVES to have around for your Benz. These are his top 5 picks. This kit includes the following 5 products:
Here is what Kent says about these wrenches: " I am very picky about the "feel" and "fit" of my combination wrenches. Some are just too smooth and slippery, while others just don't feel good in your hands. Then their are those who have real thick heads that make it hard to get on close quarter nuts and bolts (like Kobalt). A lot of the real cheap wrenches don't fit tight on the heads, thus causing rounding off of the heads (like a lot of them)!!
This is not a normal nut. On the face it has a special hard plastic nylon seal. When this seal deteriorates you may see evidence of power steering fluid seeping out of the bottom the the adjustment locknut (located on the top of the steering box). Kent recommends if you are planning to loosen your locknut to adjust the play in your steering box that you purchase this new nut ahead of time. Fluid leaks are not fun!
Carry these two pieces in your diesel for road side emergencies. Not uncommon for an injector return hose to fail when you are out on the road. This hose will fit most all Mercedes diesels from 1969 to 1995 that use rubber return hose connected to the fuel injectors 220D 240D 300D 300CD 300TD 300SD 190D 300SDL 350SD and 350SDL. NOT EXACT LENGTHS. One piece measures from 15 to 18 inches and the other piece will measure from 6 to 8 inches.
5 pieces 11" to 16" long misc ends from our cutoff stock. From 1/8 inch to 3/16 inch diameter. These can be used on various vacuum connections. Maybe some small fuel hose included. Yes, Kent does use fuel hose on vacuum systems as it will not swell and rot like regular rubber vacuum hose.
PLEASE NOTE: Not to be used for diesel fuel injector fuel return hoses!!
Brand new gasket. Make sure this fits your transmission before ordering. No returnable if ordered in error.
For 14mm and 18mm spark plugs. These work on the older and the newer ( Up to 1995) Mercedes spark plug holes. Use a 13/16 inch deep socket to drive the chaser.
This is a very handy smaller torque wrench to have in your tool box. It will do fuel injectors but is not quite big enough to torque wheel lug bolts. Range is 5 to 80 foot pounds. To order a 1/2 drive torque wrench CLICK HERE.
Nice set of heavy duty pick tools with rubberized handles. They have hardened steel tips which allow for more prying and twisting with less tendency to bend the tips.
This is Kents new favorite ratchet wrench for turning engines over during service and repair. There are a number of maintenance procedures that require you rotate the engine over by hand. This would include timing chain replacement and timing, injection pump timing and replacement, valve stem seal replacement, valve guide rails and camshaft replacement, front crank seal replacement, transmission removal and replacement, or any other procedure that requires engine rotation.
Engine Camshaft Woodruff Key
3 Degrees Offset
Fits Mercedes Benz:
190DC, 190E, 200D, 230, 240D, 250, 250S, 250SE, 280CE, 280E, 280S, 280SE, 280SEL, 300CD, 300D, 300SD, 300TD, 380SE, 380SEC, 380SEL, 380SL, 380SLC, 420SEL, 450SE, 450SEL, 450SL, 450SLC, 500SEC, 500SEL, 560SEC, 560SEL, 560SL,
Once an engine or transmission gets over 20 years old the seals start to fail and will eventually leak. Many times it's not from wear on the seal lip, but rather from age. I said this many times that age is the big killer when it comes to something made of rubber, plastic or any type of synthetic flexible material.
The rear crankshaft seal is one such problem area on older Mercedes gas and diesel engines. if you have one of the old 616 or 617 diesel engines it's very difficult to change the rear crank seal without removing engine from the car. But many other early models including all those diesels produced from 1986 onward have a replaceable rear crank seal that can be removed and replaced once the transmission is pulled out of the car.
Replace those nuts that keep loosening up with nylock metric nuts that just won't come off. Inside the door panel on the window regulators. Around the engine compartment. Air filter housing nuts. etc. etc.
If you have purchased one of our all metal diesel prefilters the day may come when you need spare parts to service or repair your old filter. This kit includes the following:
NO INSTRUCTIONS or additional fittings included. CLICK HERE TO VIEW OUR COMPLETE METAL FILTER KITS.
If you already have or are willing to buy a 5 pound slide hammer, you can make your own diesel prechamber removal tool. Slide hammer action will allow you to PULL it from the cylinder head once you have removed the collar nut and the glow plug ( a collar nut removal tool is required. CLICK HERE to learn more). Complete instructions are included on how to remove and replace the pre chamber once you have welded this tool to your slide hammer (no instructions are sent on how to weld it to the hammer as most slide hammers are different).
Fits 201 124 123 126 chassis