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$54.50

All Chassis 1968 to 1991 Front Steering Idler Arm Repair Kit

Next to bad steering gear box this is number one cause of steering looseness

FITS THE FOLLOWING: All Mercedes Chassis 111 113 108 109 107 114 115 116 123 126 from 1968 to 1991 (not applicable for 201 or 124 chassis). This is a very common wear problem on most older Mercedes.

$38.95

Diesel Automatic Transmission VCV Vacuum Controls Testing Kit

All diesel Automatic Transmissions with Vacuum Modulator Fitted 1978 to 1993

This unique kit will allow you to hook up a 30 in HG vacuum gauge between your vacuum control shifting valve (VCV) and your transmission modulator to test the VCV for proper function and to tune it for peak shifting performance.

61x Diesel Automatic Transmission Modulating Pressure Test Kit
$75.50
Currently out of stock.

61x Diesel Automatic Transmission Modulator Pressure Test Kit

Updated 11/20/25 - Purchase revised kit with video instructions and speed adjusters listed below.

Applicable to 114 115 116 123 and 126 Chassis, years and models listed above. Troubleshooting an annoying shift problem must first start with the vacuum modulator.

Late Style Vacuum Pump Main Checkvalve
$99.50
Currently out of stock.

Late Style Vacuum Pump Main Checkvalve ( Check Valve )

NLA - no longer made

FITS THE FOLLOWING: ALL 123 and 126 chassis 240D, 300D, 300TD, 300CD, and 300SD 1980 to 1985 with later style vacuum pump (only one line coming out of top). In 1980, Mercedes changed the design of its diesel vacuum pumps.

$16.95

617 Turbo Diesel Air Cleaner Rubber Mount Heat Shields ( Set of 3 )

These can help prolong the lift of the rubber mounts under your air cleaner housing

These steel cupped heat shields go under the rubber mounts to help deflect heat and grease away. In most cases (unless your engine is severely shaking) they will prolong the life of the rubber mounts.

On Demand Video
$7.99

Troubleshooting Older Diesel Automatic Transmission Shift Problems - On Demand Video

Knowing where each component is located and what it does is the start of solving externally caused shift problems

I don't think there is any owner out there who has owned a 1978 to 1993 diesel automatic for any length of time and who has not had some sort of shift problem with the transmission. Maybe it was just a little jerk or a slipping shift. Maybe the rear end clunked hard when you came to a stop.

On Demand Video
Step-by-Step Diesel Purge Instructions - On Demand Video Instruction
$8.99

Purging a Diesel Engine Fuel Delivery System Step-by-Step - On Demand Video

How to use the best medicine for sick diesels to perform a proper diesel purge

Rough running diesels abound everywhere. The symptoms include poor acceleration, no power, and excess exhaust smoke. Some times these can be a sign of real problems. Other times it may mean your fuel injection system just needs a good cleaning. And NOTHING cleans better than Diesel Purge.

On Demand Video
Chasing Interior Water Leaks in Older Mercedes Benz - On Demand Video
$2.99

Part 1: Chasing Interior Water Leaks in Older Mercedes Benz - On Demand Video

Example of diagnosing a severe water leak in a W124 chassis wagon. Principles apply to many models.

Interior water leaks are very common. More so on the older 108, 116, 114, 115. 123, and 126 chassis than on the 201 and 124 chassis. This is largely due to the fact that the older models used rubber seals on the rear glass and on the front windshield (except the 126).

$69.75

Pressure Brake Bleeder

*Note: this pressure tank can now perform a cooling system pressure leak test as well . Kent's 2-in-1 invention. See below to purchase the pressure testing cap.

When used for bleeding or flushing your brake system, a single person can do a rapid fluid flush!  No mess and very efficient. Will work on all Mercedes from 1968 to 1995 - Also select 1960's models and most later chassis up to 2006 see list below: 25-minute video instructions are now included.

$80.00

OM 636 Diesel Engine Monark Fast Glow Plugs x 2

DISCONTINUED BY MONARK FEBRUARY 2018 --We have 2 plugs left for someone who needs spares.

Only two plugs are available. These are best for spares with an engine that already has fast pencil plugs installed.  They fit 4-cylinder flat head diesel 636 engines built in the 1950s.

$3.80

30 Amp Strip Fuse 2 pak- High Amp Draw Components

Primary use for fans and heating units on late 126 and 107 , 201 and 124 Chassis

Yes, there may be a fuse inside or outside your fuse box that controls your heater blower motor or another high amp draw electrical component. Most of the separate fuse holders require a 30 amp fuse. You may find a funny looking bent fuse inside your fuse box.

$1.80

50 AMP Glow Plug Circuit Strip Fuse - Sold Individually

For 1977 to 1983 240D

50 amp fuses were used on most 123 240D diesel glow plug systems due to the lower amp draw. 80 amp fuses will also work but some may choose to go with original spec. Check the number on the center of the fuse you are currently using. It should read either 50 or 80.

$14.00

Late OM602 OM603 Diesel Bosch Glow Plug - SOLD INDIVIDUALLY

5 needed for 1986 to 1989 190D 2.5 and 1990 TO 1993 300D. 6 needed 1990 to 1991 350SDL, 1992 to 1993 300SD (140 Chassis) and 1994-1995 S350

PLEASE READ CAREFULLY. This glow plug works ONLY in those years and models listed above. SOLD INDIVIDUALLY. If you need five please change your cart total to 5. If you need 6 then change the total to 6. PLEASE NOTE:  NO INSTRUCTIONS and NO WIRE NUTS are included.

$39.95

Early Diesel Pre-glow Chamber Carbon Reamer - Designed by Kent Bergsma

For 1961 to 1979 190D 200D 220D 240D 300D 300CD 300TD with Series Style Glow Plugs

This custom reamer designed and built by Kent Bergsma in our shop is the only one like it in the World. This is truly another first. Now you will be able to ream out that old crusty carbon build-up in your old diesel engine. Thread size matches old series-style glow plugs.  18 x 1.5

$89.95

190D 2.2 4 Cylinder Cylinder Glow Plug Installation Kit

For 601 diesel engines only from 1984 to 1986 - reamer and instructions included

If you are planning to install new glow plugs in your 601 engine, 190D from 1984-1986, it is essential that you ream the carbon out of the holes to prevent premature failure of your new plugs.

$178.50

190D 200D 220D Early 240D Fast Glow Plug Upgrade w / Manual Push Button Control

All early 4 cylinder diesels 1961 to 1976 with loop series glow plugs. Override factory glow system with better performing pencil glow plugs included -- PDF Digital Instructions included!

Tired of having to pull and hold the glow / starter knob on your old 110 or 115 chassis diesel? Hand getting tired? Waiting forever to get the glow plugs hot enough to start the engine? Wish the glow plugs would not burn out so often?

$58.50

E300D Diesel All Steel Glow Plug Reamer - Long Port Version

1995 to 1999 604 605 606 Engines - Custom made by Mercedessource

Cleaning out the carbon is a MUST anytime you change glow plugs in these engines. If you don't do this your engine will not run as well a startup and it will shorten the life of the new plugs. This is a high quality custom made glow reamer. All steel body. Made by Kent Bergsma.

5 Cylinder Diesel Series to Pencil FAST Glow plug Conversion Kit
$104.75

Early 300D 5 Cylinder Diesel Series to Pencil FAST Glow plug Conversion Kit

Fits 1975 to 1979 5 Cylinder 300D 300CD 300TD - Better starting performance

WARNING: PLEASE confirm you have the original engine in your diesel BEFORE ORDERING this kit. We keep getting owners ordering this kit only to find out a later model engine has been installed. This happens quite often.

4 Cylinder Diesel FAST Pencil Glow plug Conversion Kit
$88.95

Early 123 240D 4 Cylinder Diesel FAST Pencil Glow plug Conversion Kit

For 240 1977 to 1979 with series glow plugs.

If you own an early 123 4-cylinder diesel, then this is a must-have diesel engine kit! This glow plug upgrade will do three things that will put a smile on your face: 1. Your engine will start faster and cold idle smoother. 2. Your glow plugs will last longer. 3.

$11.75

Genuine Brake Pad Paste ( 2 Pack )

Applicable for all models with disk brakes

There are other brands of brake pad anti-squeal paste on the market, but for me the factory Mercedes paste has proven to be the most effective. It simply stays in place and holds up better over the long haul.

$6.95

80 AMP Glow Relay Strip Fuse - 3 Pack

300D 300CD 300TD 300SD 300SDL 190D

Fits chassis 116 123 126 124 and 201 Diesels with pencil glow plugs, from 1978 to 1989. This includes the OM617, OM601, OM602, and OM603 engines.  They also work on 1977 to 1979 300D 300CD and 300TD with series glow plugs. This pack includes three individual fuses.

$58.95
Currently out of stock.

123 240D Monark Pencil Glow Plugs - Set of 4 with Instructions

LAST SET WE HAVE. NLA. For 1980 to 1983 Models ONLY - Check your glow plug style BEFORE ordering

Made in Germany. Application: Fits all 4 cylinder 240D diesel engines from 1980 to 1983 with pencil glow plugs. Excellent quality. They are built with the same materials and have the same specifications as the Bosch Duraterm pencil plugs.

$49.75

Heavy Duty Carbon Reamer for Pencil Glow Plug Chambers

Now with Kent's special tool included! A must-have to increase glow plug performance and extend their life.

PENCIL GLOW PLUGS ONLY!! WILL NOT WORK ON MODELS WITH THE OLD STYLE LARGE THREAD SERIES TYPE. For 1978 to 85 300SD Turbos / 1980 to 93 240D / 300D 300TD 300CD 190D 300SD 300SDL 350SDL. When was the last time your glow plug chambers were reamed out?

123 300TD Wagon and 114 115 Chassis Fuel Tank Screen Replacement Kit
$86.50

123 and 124 300TD Wagons Only and 115 Chassis Fuel Tank Screen Replacement Kit

DIESEL ENGNES ONLY: 1979 to 1987 300TD Wagon - W115 Chassis 220D 240D 300D1969 to 1976 - with special tool included

This kit includes a New Mercedes OEM fuel tank filter screen along with a special tool I have made to remove and install it. It will save you the time and expense of running out and buying a great big Allen wrench.

$16.95

Early Diesel Fast Glow Plug

Upgrade to better glow plugs for 1969 to 1979 220D 240D and 300D

New German made fast heat glow plug designed to replace the series loop tip style glow plugs that were installed in all non-turbo diesel engines up to 1979. These have the large thread built in so they will install directly into the older heads.

Sale
$86.00

1977 to 1985 W123 Sedan Fuel Door Lock Element

Fits all 240D, 300D, and 280E. Sedans only.

Fits late model 123 sedans ONLY from 1981 to 1985, such as the 300D. Be sure your gas door lock actuator matches this before ordering! This is a new plastic sealed unit as used on the later models. NOS last one at this price.

$89.00

126 Chassis SEDAN ONLY Rear Windshield Seal

FITS THE FOLLOWING: all 126 chassis SEDANS from 1981 to 1991, including 300SD 380SE 380SEL 500SEL . Are you tired of the water leaks into the trunk and rear carpet area? Windows all fog up when you get in the car in the morning. Sick of that musty smell in the trunk and cabin.

Mercedes Brake Pad Sensor Wires Set of 8
$14.50

Mercedes Brake Pad Sensor Wires Set of 8

Fits the Following: All 107,116,123 and 126 Chassis from 1973-1991.

This is a set of 8 Front brake pad sensor wires. The front brakes require two per side. Nice to have spares on hand!

Diesel Purge Injection System Cleaner H. D.
$39.50

Diesel Purge Injection System Cleaner kit with Instructions

Receive a Related Bonus-Product FREE! (Can only be shipped UPS Ground)

Can only be shipped UPS GROUND. NO INTERNATIONAL. Extra packaging charges may apply. It some cases it may be shipped in its own box depending on the size of your order and the other products included.

$103.75

Diesel PENCIL Glow Plug Relay Manual Override Kit

Alternative to expensive factory preglow relay on 1980 to 1993 diesels W116 W123 W126 W201 W124 and W140

Can be installed on the following models:  Please read carefully. All Turbo 116 and 126 300SD 1978 to 1985. All 123 turbo and non turbo 240D 300D 300CD 300TD 1980 to 1985. 1984 to 1989 201 190D. 1986 to 1991 126 300SDL 350SD and 350SDL. 1986 to 1993 124 300D and 300TD.

$192.95

Early 300D 300CD 300TD Non-Turbo Glow Relay Manual Override Kit w/ Upgrade Plugs

1975 to 1979 5 cylinder non-turbo models - PDF Digital Instructions included!

Fits the Following, 1975 to 1976 ONLY 115 chassis 300D and 123 chassis 300D 300CD and 300TD from 1977 to 1979 with series style loop glow plugs. SVO / WVO applicable. If you are tired of glow plug problems, then this kit is made for you.

On Demand Video
$4.99

Rear End Suspension Theory and Troubleshooting - On Demand Video

Covers most 1968 to 1995 models. Includes close ups and explanations of common trouble spots.

Does your rear end make funny noises while driving? Does the rear of your car sag in the back? Do you have excessive rear tire wear? Does the rear of your car feel like it is moving around? During heavy braking or rapid acceleration does your Mercedes want to steer right or left on its own!

On Demand Video
Manual Sunroof Repair Part 5 - On Demand Manual
$12.99

Tilting Sunroof Part 5: Final Height and Travel Adjustments - On Demand Video

1986 to 1995 models. Final adjustment is necessary anytime you do major work on your tilting sunroof

Adjusting the power tilting sunroof is not difficult if you have the right knowledge and a couple alignment pin tools. Adjustment is not usually needed if the sunroof is working properly.

On Demand Video
$14.99

Manually Operated Sunroof Removal and Service - On Demand Video Manual

Applies directly to all W123 wagons and some 123 sedans and indirectly to other early 111, 108, 114, 115 and 116 models

Manual sunroofs can have problems too. Just like their electrically operated counterparts, most often they will fail due to lack of lubrication. The number one failure point is a broken T handle. Number two is failure of the roof to close properly due to damaged felt feet and plastic slides.

On Demand Video
$0.99

W123 Battery Removal Easy Method and Under Tray Inspection Alert - On Demand Video

How to prevent damage to the battery, the car and your back when removing that big battery

This is another small "frustration" for W123 diesel owners. The diesel requires a big and heavy battery that is not as easy to remove and replace as you would think. If you are not careful, you can tweak your lower back lifting one out of the car.

On Demand Video
$2.99

1977 to 1985 Mercedes Diesel Oil Change Procedure the Easy Way - On Demand Video

Do your oil changes yourself to make certain they get done properly with the correct oil!

Doing your own diesel oil changes is not difficult.  Granted you won't save a lot of money, but it will get you to regularly inspect your engine for oil leaks, etc and it will guarantee the job gets done right.

On Demand Video
$2.99

201 and 124 Chassis Side Marker Lens Removal and Replacement - On Demand Video

Knowing how to do this correctly can avoid breaking the fragile plastic hold down part

Anytime you need to replace the side marker turn signal lens or the bulb inside you will need to remove it from the front fender. You will also need to remove it if you plan on pulling the full headlight assembly.

On Demand Video
126 Under Dash Panel - On Demand Video Instruction
$2.99

W126 Right Under Dash Panel Removal Procedures - On Demand Video

The "hidden" fasteners can be difficult and you will damage the panel if you miss some.

It is not as easy to remove the right side underdash panel in the 126 chassis as you might think. There are a number of hidden fasteners, some of which can be a little confusing as to how to remove properly. Kent has seen a lot of broken and damaged panels that confirm this.

On Demand Video
Early Mercedes Wiper Arm Removal, Replacement and Adjustment Procedure
$2.99

How to Fix Some Early Turn Signal Levesr That Won't Hold Position - On Demand Video

Most 1965 to 1976 models if they still function but lever will not hold. In most cases you can repair it yourself and save big $$$.

An annoying problem on many older Mercedes up to 1980 that have an aluminum housing surrounding the turn signal arm latching assembly. When these wear out the lever will not hold position when you push it up or down.

On Demand Video
$4.99

Waking Up An Old Benz That Has Sat For Years Part 1 - On Demand Video

Kent covers what you may have to do first with the engine and fuel system

When an old Mercedes ( or any other car for that matter ) has sat idle for over a year it can be a challenge to get it safely back on the road again. If it has sat idle for more than 5 years you may find it difficult to even get the engine running. 

On Demand Video
Removing and Replacing an Inside Rear View Mirror
$2.00

Removing and Replacing an Inside Rear View Mirror the Easy Way

Part of Kent's $2 tip video collection. The tip will only cost $2 but you could save considerable money and grief by watching this video. Hard enough to remove and almost impossible to reinstall by hand unless...

Understanding how an inside rear view mirror is mounted is essential for proper removal and replacement. The mirror can be easily damaged if you do not know the tricks to getting it snapped back into the mounting bracket in the head liner.

On Demand Video
Mercedes Check Strap
$6.99

Mercedes Door Check Strap Diagnosis and Replacement - On Demand Video

Common repair that you can do yourself with minimal tools and mechanical experience

Groaning, snaping and jammed door check straps are a common problem on the older models (up through 1995). This is primarily due to age and lack of lubrication. Newer models will soon start having similar problems. Rain water getting inside the doors is the big killer.

On Demand Video
$4.99

Abnormal Diesel Engine Noise Troubleshooting - On Demand Video

How to determine if the engine noise is external or internal

Diesel engines make noise. Some ticking and rattling is normal and not something you should be concerned about. Certain loud knocking or rattling noises could be a sign that something bad is happening to the engine, especially if the noise comes on suddenly.

On Demand Video
Tilting Sunroof Repair
$12.99

Tilting Sunroof Part 2: Tilting Mechanism Service and Repair - On Demand Video

1986 to 1995 models. Learn how the tilting arm mechanisms work and how to service, repair and replace them

This is part 2 of a 4 part video series Kent has done on repairing the power tilting sunroofs on the W201 W126 and W124 chassis built from 1986 to 1995. Part 1 covers removal and replacement of the sunroof panel and headliner.

On Demand Video
124 Under Dash Panel Removal
$2.99

W124 Driver Side Under Dash Panel Removal - On Demand Video

You will be surprised at how many hidden fasteners are used on this model

The driver's side W124 under dash panel can be a little tricky to remove due to all the hidden fasteners. Without knowing where these are and how to get to them, removal can be frustrating and it is easy to break the plastic covers.

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