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$18.85

CIS Fuel Pressure Tester Accessory Kit w/ Thin 14mm Wrench

For testing K-Jetronic and KE-Jetronic fuel injection from 1976 to 1993. Thin wrench, relay jumper lead, and two extra fittings.

These items are included in the deluxe assembly pressure tester. If you purchase the "builder's kit," you may or may not need these items depending on your experience and what you have in your toolbox. FIT

The kit includes:

$20.00

160 PSI Liquid Filled Fuel System Pressure Gauge w/ Adapter Fitting

Upgrade your current tester gauge to one that is more accurate and can tolerate more abuse.

This rugged, stainless steel gauge can survive much more abuse than non-liquid-filled gauges. Many don't realize just how fragile the mechanism that moves the needle is.

$89.99
Currently out of stock.

1976 to 1993 Bosch C.I.S. Fuel Injection Pressure Tester - Builders Kit

No Longer available as a builder's kit. Kent decided to assemble and test it here for reliability. See BASIC and DELUXE kits available below

The email questions from owners trying to get their old fuel-injected 1970 to 1993 Mercedes running right drive him crazy. Most follow a pattern, and most will require a fuel injection system flow and pressure test to troubleshoot the problem.

$12.90

M103 6 Cyl Engine Spark Plug Oil NON-FOULER 2-Pak

For 260E 300E 300TE 300CE 300SE 300SEL190E 2.6. An inexpensive solution to a very common problem on this engine.

Watch the video below to get a "feel" for what these can do. The M103 is notorious for fouling spark plugs - mainly due to oil getting by the hardened valve stem seals. This was a problem when these engines were new and only had 60,000 to 80,000 miles on them.

$49.50

M103 6 Cyl Engine Spark Plug Oil NON-FOULER kit

For 260E 300E 300TE 300CE 300SE 300SEL190E 2.6. An inexpensive solution to a very common problem on this engine.

Watch the videos below to get a "feel" for what this kit can do. The M103 is notorious for fouling spark plugs - mainly due to oil getting by the hardened valve stem seals. This was a problem when these engines were new and only had 60,000 to 80,000 miles on them.

$69.00

Mid 1960's W111, W113, W108 Flat Curved Face Horn Pad - Used

Not the same as the later 1969 to 1972 horn pads. See pictures below

Excellent condition. No cracks or dents. This pad has a curved face that slowly rolls into a fairly sharp edge at the outer circumference.  Unlike the earlier ones, it does not have a chrome ring on the edge. BUPS

$875.00
Currently out of stock.

M100 6.9 N.O.S. Engine Water Pump - 100 201 18 10 E

Very hard to find and VERY expensive if you can find another.

Genuine Mercedes new part a shown, but does have some shelf wear.  This has been sitting in a dark and dry garage for about 20 years. It was mounted on an engine out of the car but not run.  But it was put together with the housing and then taken apart.

$12.40

M272 V6 and M273 V8 Upper Radiator Hose O-ring Seal x 4

All 2005 to 2015 272 273 engines with electronic thermostat as shown below.

When removing the upper radiator hose for engine service, such as replacing the electronic thermostat or the seal on the back side of the oil cooler, you will have to remove the upper radiator hose.

$89.00

560SL Radiator Expansion Overflow Tank New!

Fits only 560SL from 1986 to 1989. Cap and level sensor NOT included.

Would you like to make your 560SL engine compartment look like new again. This part is one of the biggest offenders as they all turn this weird yellow color, making it appear old and fading.

$250.00

1981 to 1984 W126 300SD Complete Exhaust System - USED

Low mileage and in excellent condition. No weak metal and no leaks. Will not ship. Must be picked up in Bellingham, Wa.

DO NOT try to check out. Contact us via email  (sales@mercedessource.com) if you wish to purchase, and we will arrange payment and discuss pickup options. It is very hard to find one this good, so we are offering it for sale even though it will require a pickup truck to come and get it.

$75.00

1977 240D Oil Filter Hosing Complete - Excellent Used.

Only for VERY early W123 240D with the single center-bolt cap as shown below.

We have only seen one of these, and it came off a 150,000 mile 1977 240D. I am sure it would fit the 1978 and 1979 240D, but it would not be original. Study the pictures carefully. Note the different cap designs with long center bolt. BUPS

On Demand Video
$8.99

How to Make Those Finicky Airmatic Air Line Fittings Work - On Demand Video

You think it can't be that hard. Then you follow instructions and the pressure line won't lock in. Frustrating for sure!

In this xx-minute instructional video, Kent will explain and demonstrate how to change and deal with the end fittings on the high pressure lines used on the Mercedes airmatic suspension from 2000 to 2013. Examples shown are filmed on a W220 S500.

$44.90

1972 to 1989 R107 C107 HVAC Blower Motor Plastic Cover SEAL

Genuine Mercedes part - high quality

Almost all of these seals are now severly compressor or rotten. Do not allow water to get down into the blower motor cavity. This is a very common source of hidden rust the the R107's. Other parts related to this seal are listed below. 

$16.90
Currently out of stock.

350SL 450SL 380SL 560SL Rocker Panel Moulding White Insertion Clips x 15

For all R107 and C107 from 1972 to 1989 - 15 clips are enough to do BOTH sides.

Sometimes, it can be very frustrating to "bang in" those chrome moldings below the door on an old R-107. The clips enlarge or they are too deep in the rocker panel. We have found that these white plugs work better than the standard red plugs used on other models of that error.

$44.00

Kent's Shop Uniform for Sale Without Logo

This will fit 5'11 to 6'1" Torso with a thin to medium build

PLEASE NOTE: Size examples as shown. Please study carefully. The shop coat is not returnable if it does not fit. We are not Amazon and are only selling this for the convenience of our customers because we have been asked for it numerous.

$9.80

Newer Style 6-Point Flower Head Wheel Lug Bolt - Sold Individually as Shown.

(14 X 19 X 1.5 mm) (Chrome Head). Requires special socket to prevent damage. See related products

FOR SELECT MODELS ONLY! Confirm your head design AND length before ordering. The first time you see one of these six-point head wheel bolts, you will think - "how am I supposed to get that off? Is there a special wrench in the glove box?

$8.20

350SL 450SL 380SL 560SL Rocker Panel Chrome Moulding Clips x 8

Genuine Mercedes. For all R107 and C107 from 1972 to 1989 - Eight clips are enough to do one side.

Old plastic often just breaks. If you find one or more broken on your rocker trim, it is best to replace all of them. This kit is for one side ( usually requiring 7 or 8 clips). Order 2 at checkout for a full set right and left. Rocker molding insertion clips are available separately.

$9.90

Heavy Duty 11 Inch Long Tapered Punch - U.S.A.

1/4 inch end - Great for suspension work - aligning control arms and bushings for inserting bolts easily.

BIG punch. Must have for the DIY mechanic. Good for driving and good for aligning holes.

Very handle for alighning shocks and other suspension parts during assembly.

$55.00

W126 300SD Battery Cables and Wire Set - USED

For 1981 to 1984 300SD Diesel engine.

Used wiring set and cables as shown. These are the actual parts you will receive. The cover on the alternator plus is missing and the plug has been taped up. BUPS

$76.00

W126 300SD Turbo Diesel LEFT Side Motor Mount Arm ( Used )

Fits 1981 to 1985 126 turbo diesels only. No corrosion and excellent motor mount bolt threads

Excellent used driver-side motor mount arm with excellent bolt mount threads. If your threads are damaged or the bolt broke in the threads replacement is the best solution.. Please take a look below for the passenger side. 

Sale
$82.00

2000 to 2011 S500 CL500 S550 *CL550 Base Model Engine Mounts

Will not fit 4Matic models. Usually only last 80,000 to 100,000 miles - Most common source of engine vibration at that mileage.

NOTE: Only fits CL550 2-wheel drive through 2008.  QUALITY re-engineered aftermarket engine mounts as shown.  Not Genuine you ask?? Well, genuine have not proven to last that long or be the best. You make the call. 272273

 

$16.00

W220 W221 Airmatic Special Tool: Rear Strut Top Fitting Removal

This tool will put a smile on your face if you are changing or chasing leaks in your rear airmatic struts

On 2000 to 2013 S Class sedans with airmatic suspension, getting to the top fitting on the rear strut under the panel below the rear glass can be a real pain. It is so tight in there you can hardly see what you are doing.

$65.00

Ponton 190, 219, and 220S Mechanical Fuel Pump and Parts Lot - USED

Study the pictures carefully to make sure your pump is the same.

Late 1950's carburated engine fuel pumps and parts as shown.  What you see here is exactly what you will receive. Two of the pumps were taken apart to check the internal condition and put back together (Dec. 2024). Sold as is - not warranty - and they are not returnable. 

On Demand Video
$12.99

Removing MAF and Intake Elbow and Reinstalling Them without Damage - On Demand Video

M112 M113 M272 M273. This procedure will be required to clean the throttle body and/or replace the lower critical seal.

Cleaning the throttle body on 1998 to 2013 V6 and V8 engines can yield amazing results with improved idle, power, acceleration, and fuel economy. To do it, you must remove the MAF and the intake elbow that attaches to the throttle body on the back of the intake manifold.

On Demand Video
$9.99

1998 to 2013 V6 and V8 Safe Throttle Body Cleaning Procedures - On Demand Video

The best "bang for the buck" performance DIY "fix" - M112, M113, M272, and M273 specific, but can work on any throttle body fuel

Why is this not regularly done?  Why don't a lot of shops recommend it? The results can be dramatic with regard to engine smoothness, acceleration, and fuel economy. What about the reports it can damage the engine?

On Demand Video
$6.99

W221 S550 Exhaust Hanger Replacement - On Demand Video

It has a heavy exhaust and is supported under the car by eight rubber hangers. They get hard and can transmit vibrations to the chassis

In this 5-minute demonstration video, Kent will show you how to replace the exhaust hangers on a 2010 W221 S550.  This is an easy DIY job and should be done at your 100,000-mile inspection.  272273

On Demand Video
$12.99

1996 to 2012 Rear Control Arm Bushing Replacement - Use of Special Press Tool - On Demand Video

With Kent's multi-part tool this critical rear suspension bushing can be replaced on the car by lowering the control arm.

In this 15-minute instructional video, Kent will demonstrate the use of his unique bushing press tool on a W221 S550. He calls this the "hidden bushing" as you can not see it, and it is tough to inspect its condition without dropping the control arm.

On Demand Video
$6.99

M272 M273. Secondary Air Injection System Inspection and Troubleshooting - On Demand

Applies to all M272 V6 and M273 V8 engines from 2006 to 2013

In this 14-minute instructional video, Kent will show you all the components of the engine's air injection system, how to inspect and test them individually, and how they work in concert with each other. This is definitely something you would want to add to your own 100,000 inspection.

On Demand Video
$9.99

M272 M27s Secondary Air Control Valve Testing and Replacement - On Demand Video

These are not EGR valves. Often mistaken and much confusion on what they really do.

In this 10-minute video, Kent will explain the operation of these two valves on top of the front of the engine, how to test them, and how easy it is to replace them. If you are having problems with your electric air pump wearing out prematurely, the problem may be these valves. 272273

$33.85

1998 to 2013 V6 and V8 Air Induction and Fuel Injector Cleaning Kit

Absolutely the best "bang for the buck" performance DIY tweak - M112, M113, M272 and M273 specific but can work on any throttle body fuel injected engine.

Why is this not regularly done?  Why don't a lot of shops recommend it? The results can be dramatic with regard to engine smoothness, acceleration, and fuel economy. Watch the video below, and Kent will explain the kit contents in detail.

$128.00

R107 350SL,450SL and 380SL Loose Front End Steering Fix Kit

From 1972 to 1985, including SLC. Includes 2 tie rods, center drap link, and idler arm bushing kit.

Unless your steering box is all worn out, these are the parts you need to replace to get your 1972 to 1985 R107 steering tight again. That includes the 350SL,450SL, 450SLC, 380SLC and 380SL. Be sure to get a front-end alignment after installing these parts.

$108.00

W126 Loose Front End Steering Fix Kit

1981 to 1991 Big S Class Sedans and Coupes. Heavy front ends wear these parts out faster. Includes enter tie rod, 2 end tie rods, and Idler bushing installation kit

Unless your steering box is all worn out, these are the parts you need to replace to get your 1981 to 1991 W126 steering tight again.

$48.00

W123 and W126 Sedan and Wagon Full Set of Torx Head Stainless Door Striker Bolts

Only available from Mercedessource. Designed and machined by Kent Bergsma. 16 total for all four doors.

The original hex bolts are soft metal, and they round out easily. This makes it slow and tediously to adjust your door strikers.  Torx is much better than Hex!  Old Allen has passed on...

You will need a Torx T45 bit to install these.

$34.60

2007 to 2012 W221 S550 Exhaust System Hangers - Full Set

With M273 V8 engine only. Eight rubber hangers as shown. Reduce engine vibration through to chassis.

These get hard with age. Even though they may "look" ok, they may no longer be soft enough to reduce transmitting engine vibrations through to the body. Eight total are required, as shown. Two up forward, two in the center, and four in the rear (two on each side at the tips). 272273

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