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Mercedes Diesel Automatic Transmission Peak Performance Tuning Manual

FREE SHIPPING - Covers ALL Diesel Automatics from 1969 to 1985 220D 240D 300D 300CD 300TD 300SD

Item: MRM-TRANSTUNE
$32.95
61x Diesel Automatic Transmission Tuning Manual
Lets face it! Diesel automatic transmissions can be troublesome, particularly those models that use vacuum to control shifts. This is largely due to the fact that diesel engines don't produce vacuum naturally. It has to be artificially manufactured. This is what makes diesel transmission tuning difficult. The numerous vacuum and pressure controls that were added to make it shift properly can create all kinds of problems when they fail or get out of adjustment.The big challenge in writing the manual was to clearly explain how to get all these controls working in harmony for the transmission to operate at peak efficiency.

Mercedes 616 617 Diesel Shutoff Valve Adjustment and Leak Fix Kit

1977 to 1985 all 240D 300D 300CD 300TD and 300SD only

Item: DSL-COMDSVAK
$9.95
616 617 Diesel Shutoff Valve Adjustment and Leak Fix Kit

If your shut off valve is leaking oil or is not shutting off quickly (even with a good valve and proper vacuum applied to it) you may need to remove it for repair. You can adjust its travel with the items included in this kit. Comes with 2 new gaskets, proper gasket sealant and instructions for adjustment. Comes with instructions on how to remove and replace the valve but that is done is readily done by removing the four bolts that hold the valve to the back of the injection pump.

CLICK HERE to view the new and used fuel shutoff valves we sell.

CLICK HERE to order more gasket sealant

Mercedes Single Lower Front Seat Spring Repair and Restoration Kit

For ONE 116, 123 and 126 Chassis Sedans, Coupes or Wagon Seat Bottom

Item: INT-COMSEATFIX
$54.95

This unique kit is designed to help you repair and restore one broken down front seat bottom so common in the 116, 123 and 126 chassis Mercedes built from 1973 to 1991. And it can be done without taking the upholstery off the seat! The seat must be removed from the car and placed upside down on a work bench. You work with hand tools to install the included hardware from the underside of the seat frame. Average repair time is 2 hours for one seat. No special tools are required other than a grinder if you need to cut one or more of the reinforcement springs included. Included are 15 full page step by step instructions (with 50 pictures) on how to remove the seat, fix the broken springs, beef up weak areas, test the repair, and install the seat back in the car.

Mercedes Self Leveling Suspension, Theory, Troubleshooting, Maintenance by Kent Bergsma

FREE SHIPPING

Item: MRM-COMSLSS
$17.50

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.

Mercedes Monark Diesel Fuel Injector Nozzles-Best Engine Performance Upgrade

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...

Mercedes Late 123 107 126 Monovalve Heater Switch Assembly Used - ON CLEARANCE!

Fits 1981 to 1991 models of the above chassis

Item: MVA-ELECTA-12
$79.00
$60.00 On Sale!
This item is currently Sold Out.

For heat control on 123 300D 300CD 300DD 126 300SD 300SDL 107 380SL 560SL 1981-1991. Good used mono-valve assembly with switch solenoid. Tested and working. Rubber on the mono valve itself is not torn and in good condition.

Mercedes Complete MBZ Brake System Service and Repair Resources

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.

NEWS FLASH! Club Mercedessource is Here! - with Member ONLY Benefits

Announcing Club Mercedessource! For a long time now we have been trying to find a way to reward friends of Mercedessource. We decided the best way to do this would be through a membership subscription that would automatically change one's access level on our website. Once you join you will be able to gain access to all the unique club products and services

Here is a summary of current key benefits:

Mercedes Brake Bleeding Equipment and Procedures Manual

FREE SHIPPING

Item: MRG-COMBBEP
$14.95
This new manual by Kent Bergsma covers brake bleeding equipment and procedures for all model Mercedes from the mid 1950s to the mid 1990s. This cover chassis Ponton 110 111 112 113 108 109 114 115 116 107 116 123 126 201 and 124. Special Includes Brake Bleeder Kit as shown. This new easy to understand 20 page guide will walk you through the different ways to bleed your brakes and the equipment needed to do the job right. Brake bleeding is something that no sane person finds enjoyable. It can be messy and often involves painful bodily contortions to access the bleeder screws. There seems to varying opinions as well as a bit of black magic involved with the bleeding process. It may be more of an art than a science. Sometimes the procedure works perfectly, and then other times it seems like you end up with endless air in your system that just wont come out. The information contained in this manual with eliminate some of the mystery and give you the knowledge and confidence to do the job right the first time. Covers safety tips, types of bleeding equipment and four different ways you can bleed your brakes.

Mercedes 5 Cyl 617 Diesel Fuel Injector DIY Rebuild Kit Special

For 300D 300CD 300TD 300SD - Save $$

Item: DSL-COM617DIRK
$309.95

If you have been reluctant to replace your worn and inefficient Bosch fuel injector nozzles because the job is too difficult or too costly then think again! For approximately the same cost as rebuilt Bosch fuel injectors you can purchase this kit to rebuild them yourself in your garage and get better performance to boot! Works on all 617 engines 300D, 300CD, 300TD and 300SD from 1975 to 1985.

Mercedes Diesel Fuel Injector Balance Pressure Tester

For all MBZ diesel engines 1950 to 1993

Item: TUL-COMDIPT
$179.50
$155.00 On Sale!

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.

Mercedes Digital Caliper Metric and SAE - On Clearance

A Must Have for Ajusting Diesel Fuel Injectors

Item: TUL-COM6IDC
$17.00
Digital caliper 6 inch

If you work around your Mercedes much this is a great tool to have. The quality is exceptional for the price. It will reset to measure in both inches and millimeters. For a limited time I will even include a spare button battery at no extra cost.

If you are going to test and tune your diesel fuel injectors this is a must have tool! It is the best way to determine the current thickness of the pressure adjusting shim washer in each injector and to help choose the proper replacement. We are committed to helping you service and overhaul this critical maintenance component. Digital caliper is six inches in length.

Mercedes 123 Late Vacuum Door Lock Actuator

Item: VCM-123LVA
$34.95
123 Late Vacuum Door Lock Actuator
FITS THE FOLLOWING: all 123 chassis coupes, sedans, and wagons from 1981-1985. New OEM door lock actuator (element) for replacing the leaking one that is keeping your door locks from working properly. Be sure and buy my 123 vacuum door lock repair guide which will show you how to test for leaks and remove your door panels to get to these units.

Mercedes Turbo Diesel Engine Anti Rattle Kit

Item: DSL-123ARK
$24.50
300D 300TD 300CD 300SD Turbo Diesel Engine Anti Rattle Kit

Works only on the 5 cylinder turbo engine from 1978 to 1985 (116, 123, 126 chassis). 300D 300TD 300CD 300SD. Does not work on some 1985 models with trap oxidizer (air cleaner mounted off the engine). If you own or have owned a 116, 123, or 126 with a 617 turbo diesel engine for any length of time you are probably very aware of the air cleaner shake and rattle problem (except 1985 models with trap oxidizer). Rubber mounts loosen up or tear and the mounting brackets seem to break way too often. With this kit and instructions I hope to help you eliminate or at least drastically curtain this common problem. After working on literally hundreds of these engines I have found that just replacing the bracket and the three rubber mounts is not the answer.

Mercedes Diesel Fuel Injection Maintenance Pak - 1 and 1 Purge and Hi-Test

For all diesel engines 190D 200D 220D 240D 300D 300CD 300TD 300SD 300SDL E300D

Item: DSL-COMPHTCP
$14.95

WARNING: THIS CAN ONLY BE SHIPPED UPS GROUND within the lower 48 States. Do not order with other items and ask it to be shipped expedited or by U.S. Postal. The best way to take care of your diesel fuel injectors and your fuel injection pump is to regularly use these two products. The diesel purge is run directly into your engine using a bottle and some short hoses (it is not added to the fuel tank). This cleans the gum out of the injectors and pump and keeps them spraying in tip-top shape. This should be done every 4 to 6 months depending on your driving conditions.

Mercedes Instrument Cluster Bulb Set of 4 with Genuine Special Install Tool

Fits 123 126 201 124 129 Chassis Instrument Clusters

Item: ELT-COMIBBH
$18.95

4 new indicator light bulbs in new holders with the Genuine Mercedes Install Tool. This tool can help you twist remove and install the bulbs without damaging the tabs.

Mercedes Dont Fall Behind in Your Maintenance - 2 for $22 Special

Indicate your choice for any two items listed below at checkout and only pay $22 plus shipping.

Item: PROMO-2FOR22
$22.00

Winter is coming sooner than you think. We want to help you will your fall maintenance by offering you this great special. Available Now through Sept. 15.  You can pick any of the following two (2) items and only pay $22 plus shipping. Get them while you can! Some are limited to stock on hand. PLEASE LIMIT ONE 2 FOR 22 SPECIAL PER CUSTOMER

To order this special you MUST add this item to your cart so you only pay twenty two dollars - PLEASE indicate in the comments section at checkout which two items you want to receive.  If you don’t do this we will not know what to ship you.... :-). The following is the full list of sale items:

Mercedes 123 Chassis All Models Front Turn Signal Lens Replacement Set

Aftermarket: For 1977 to 1985 240D 300D 300CD 300TD 280E 280CE

Item: BDP-123AMTSL
$68.50
$52.95 On Sale!

When I first saw these from our supplier I thought I would not sell them as they did not match up to the original Bosch O.E. quality. Then I had to hit myself on the side of the head to realize this - for the price you can not expect them to be like Bosch!!! The originals are hard to get and they list for $174.00 FOR EACH SIDE!

Today Was Check-Your-Tail-Lights Day at Mercedessource - Sept. 1, 2010

Today I ended up checking everyones tail lights out in the parking lot. It all started when Kristin ask for help in repairing her inoperative brake likes. After fixing those we checked out all the lights on Kaias wagon and then my wife, Linda, drove in in her 1993 300D, so I decided to check those as well.

I immediately noticed something was not quite right with the left brake light. It was coming on but was not getting as bright as the right side. I removed the bulb holder to find that the running light was coming on with the brake light when the brake pedal was pushed and the the headlight switch was off - and both bulb would only glow dim as you can see in the picture below.  Now what do you think would cause both bulbs to glow when hitting the brake pedal.  I had seen similar bulb weirdness before so I had a pretty good idea what the problem was. I showed the condition to my wife Linda and she said I should grab the camera and make repairing this problem a subject for a technical tip. You know I married smart!

Mercedes Late 107 116 123 and ALL 126 Chassis Front Brake Pad Installation Kit w/Extras

1979 to 1980 450SEL 300SD 450SL - All 380SL -1980 to 1985 240D 300D 300CD 300TD - All 126 Sedans and Couples 1981 to 1991

Item: BRK-COMPOPLFP
$44.75
$38.95 On Sale!

High Quality aftermarket OP brake pad set (for both front brakes) that include extra large built in anti-squeal plates. We include new brake sensor wires, and a 9 page install instruction booklet. For a limited time we are including genuine Mercedes brake pad grease at no extra charge. You will love how these pads seat in and wear. They have a good feedback feel at the pedal. I use these on my 6.9 and am very happy with them.

WARNING: These pads only fit certain years.  YOU MUST verify your vin number if you have a 116, 107 or 123 chassis.  If you are not certain email us before ordering!!!

Mercedes Later Automatic Transmission Dipstick Genuine

Most models 1981 and to 1993. 123 chassis only Turbo Diesel - see list below

Item: TRN-COMTDS
$29.50

New Mercedes part with upgraded locking lever. Nice.

Click picture to see all the models this fits.

Mercedes 617 Turbo Diesel Transmission Gasket and Seal Kit

For all 1981 to some 1985 722.315 Transmission

Item: TRN-COMGAS
$92.00

Fits MERCEDES BENZ 300DT, MERCEDES BENZ 300SD, MERCEDES BENZ 300TD, MERCEDES BENZ 380SE, MERCEDES BENZ 380SEC, MERCEDES BENZ 380SEL, MERCEDES BENZ 380SL, MERCEDES BENZ 380SLC, MERCEDES BENZ 500SEC, MERCEDES BENZ 500SEL

Mercedes 5 Pc. .05 mm Thin Shims For Diesel Fuel Injector Pressure Adjustment

For all 615 616 617 601 602 603 engines 1961 to 1995

Item: DSL-COM05MMSK
$9.95

PLEASE NOTE: These five shims will most likely not be enough to adjust a full set of 4 to 6 diesel injectors. This is a -fill in-kit and will help when you need extra THIN shims to adjust one or two injectors on models 190D 200D 220D 240D 300D 300CD 300TD 300SD 300SDL and 350SDL. We also have a set of five .10 mm shims which are slightly thicker CLICK HERE.

Mercedes 5 Pc. .10mm Thin Shims For Diesel Fuel Injector Pressure Adjustment

For all 615 616 617 601 602 603 engines 1961 to 1995

Item: DSL-COM10MMSK
$9.95

PLEASE NOTE: These five shims will most likely not be enough to adjust a full set of 4 to 6 diesel injectors. This is a -fill in-kit and will help when you need extra THIN shims to adjust one or two injectors on models 190D 200D 220D 240D 300D 300CD 300TD 300SD 300SDL and 350SDL. We also have a set of five .05 mm shims which are even thinner CLICK HERE.

Mercedes 722.4x Transmission Black Modulator Valve

Fits some 1985 123 and most models from 1986 to 1993

Item: TRS-COMBTVM
$46.00
$39.80 On Sale!
New Genuine Mercedes modulator. Has fine adjustment cap and thrust pin as shown. Sorry, no instructions at this time.

Securely Attaching Loose Dash Wood - August 26

Here is a problem I see all the time, especially on the 123 chassis. Over time the dash wood or door wood pieces will warp and pull away from the surface. Most of the wood is adhered to the dash at the factory with sticky foam tape. This deteriorates with age and the wood will loosen up or just fall off.

Where Has All the Brake Fluid Gone? August 18

Ever get in a situation where you are having to add brake fluid to the reservoir - but you can not find any leaks at the calipers or don't see any spots on the ground? BEWARE: The brake fluid could be leaking into your brake booster assembly. Yes that is right! Failed seals inside the master cylinder can allow fluid to pass by the piston and out the back of the cylinder. This is a common problem on old master cylinders. Especially if you have recently attempted to pump bleed your brake system after a fluid or component change.

Mercedes 617 Turbo Diesel Air Cleaner Reinforced Bracket Installation Kit

For 1978 to 1984 turbo model 300SD 300D 300CD and 300TD (some 85 models)

Item: DSL-COMACBIK
$69.95

Complete Kit as shown with installation tips included. These instructions and extras included will help to increase the life of your new bracket. Here is a complete list of everything included in the kit:

  • New Meyle metal reinforcement bracket
  • Special washer installed by Kent
  • 3 new rubber mounts
  • 6 self locking nuts for rubber mounts
  • Hard foam pieces to reduce air fliter shake
  • 4 zip ties
  • Tube of thread locking compound
  • Installation tips

Mercedes Turbo Diesel Air Filter Housing Rubber Mount - Sold Individually

Fits Turbo 300DT 300CD 300TD 300SD with Air Filter Mounted on Engine

Item: DSL-COMSACM
$3.85

FITS THE FOLLOWING: 116,123,126, 5 cylinder turbo diesels with an air filter on the engine. One rubber turbo air filter housing mount as shown. Order as many as you need by changing quantity in the shopping cart. No instructions or other hardware included.  You have already noticed that big air cleaner really shakes and rattles For our complete anti rattle kit with bracket reinforcement with instructions CLICK HERE to view.

Mercedes 617 Turbo Diesel Garret Turbocharger Compressor to Manifold Coupling ( Used )

Fits all 5 cylinder turbo engines 300D 300TD 300CD 300SD 1978 to 1984

Item: 10-ENGR-T3CMC
$38.00
$25.00 On Sale!

Good used turbocharger coupling that fits between compressor housing and intake manifold as shown. Seals are usable (not hard), but buy new if you are a perfectionist. This only fits the Garret T3 Turbo. Will not fit the KKK turbos. Will not fit 1985 models with trap oxidizer.