126, Vacuum

Vacuum System Rubber End Plugs (Set of 3) - for Small Size Hard Line or Engine Fittings

Item: DSL-COMREP $6.75 View Product
rubber end plugs
These rubber end plugs can be used to cap off your vacuum on the end of a line or on certain components. FOR USE ON VACUUM SYSTEM ONLY. These are NOT to be used on fuel injectors.

Vacuum System Connector - L for Small Hard Line

Item: DSL-COMLVC $3.40 View Product
L FITTING

When was the last time you knocked one of your vacuum lines off around the oil filter housing, only to discover when you tried to reattached it that the fittings were swollen and would just not stay connected? This is a L shaped fitting that fits 115, 116, 123, and 126 chassis.

Vacuum System Rubber Hose 1 Meter - For Small Hard line or Engine Connections

Item: DSL-COMVRH $4.95 View Product
Vacuum Hose

When was the last time you knocked one of your vacuum lines off around the oil filter housing, only to discover when you tried to reattached it that the fittings or hose were swollen and would just not stay connected? Here is some extra vacuum hose to fix your problem. Fits 115, 116, 123, and 126 chassis.

ONE meter cut piece.

Vacuum System Rubber Connector - Y for Small Hard Line

Item: DSL-COMYCF $3.60 View Product
Y fitting
When was the last time you knocked one of your vacuum lines off around the oil fiter housing, only to discover when you tried to reattached it that the fittings were swollen and would just not stay connected? This is a Y shaped fitting that fits 115, 116, 123, and 126 chassis.

Vacuum System Connector - 4 way for Small Hard Line

Item: DSL-COMCSC $3.45 View Product
+ FITTING
When was the last time you knocked one of your vacuum lines off around the oil fiter housing, only to discover when you tried to reattached it that the fittings were swollen and would just not stay connected? This is a + shaped fitting that fits 115, 116, 123, and 126 chassis.

116 123 126 Diesel Steering Lock Vacuum Valve

Item: VAC-COMSLVV $28.00 View Product
Diesel steering lock vacuum valve

Fits the following: All 116 126 126 Chassis Diesels from 1977-1985. This is a brand new Genuine Mercedes Steering lock vacuum valve that is located on the back of your ignition lock assembly. The vacuum lines that control your engine shutoff go from the engine compartment to this valve at the lock assembly. If you are having problems with the car not shutting off this could be the culprit!

 

617 Turbo Diesel EGR Thermal Valve

Item: VAC-COMETVV $29.95 View Product
egr vacuum switch valve
This is that little vacuum valve that always gets it nipples broken off... It is located right behind your thermostat housing on the 1981 to 1985 turbo diesel engines. It controls vacuum going to your EGR valve. When it breaks it will effect the operation of the EGR and it may make your transmission shift hard. This is a genuine OE part.

Late 123 Early 126 Diesel Vacuum Pump New

Item: VAC-COMNPVP $329.00 View Product
vacuum pump new late style
Brand new Pierburg vacuum pump with new main check valve and gasket included. This lists for $428.00 and we have a few older stock at this special price. Fits 1980 to 1985 123 chassis 240D, 300D, 300CD and 300TD as well as 126 chassis 300SD 1981 to 1985. Just make sure your current pump only has one (1) main hose connection to the pump.

107 114 115 116 123 126 Brake Master Cylinder to Booster O-ring Seal

Item: BRK-COMBMOR $2.40 View Product
Brake Master O-ring
2007-12-05ALERT! Before you replace your suspected failing brake booster you might want to change the o-ring seal between the master cylinder and booster first. I have seen more than one expensive booster replaced when it was only a $2.00 o-ring. If your engine is producing good vacuum to the booster but your brake pedal still feels hard then at least check this o-ring.

617 Turbo Diesel Multi Pin Vacuum Block at Valve Cover - NEW!

Item: VAC-COMMPVB $13.95 View Product
IMG_1374.jpg
Here is a little specialty part that almost every 617 turbo diesel owner needs or will need!. This plastic vacuum pin block is located on the top of the valve cover on 1981 to 1984 5 cylinder turbo diesel engines (except some late 1984 California models). With age and heat these little pins are now breaking off right and left. This is a brand new Mercedes part. It has 5 pins on one side and 6 pins on the other. We also carry a new rubber connector that goes on the outside of this pin block. CLICK HERE to view rubber connector.

617 Turbo Diesel Transmission Vacuum Shifting Valve (used)

Item: BCM-COMTVSA $125.00 View Product
IH83007_7.jpg
Excellent used proportional valve for controling vacuum to your transmission for proper shifts. This plastic unit was used on 123 and 126 chassis turbo diesels from 1981-1984. Some California models used a different unit. This is a good used unit if you are having problems with improper shift in your 300D or 300SD turbo transmission this could be the culprit.

Diesel Vacuum Source Troubleshooting and Repair by Kent Bergsma

Item: MRM-DSLVST $19.75 View Product
Diesel Vacuum Source Troubleshooting and Repair

This guide is written specifically for owners of 123 and 126 diesels up to 1985. There are some sections that apply to the 115 and 116 chassis but it is not specific to those models. This manual covers understanding how the vacuum system works, common symptoms of trouble, possible causes, and testing and repairing the problems. Deals mostly with issues from the firewall forward like testing the vacuum pump, repairing shutoff problems, finding leaks, etc.

vac source pages

Vacuum Hand Pump Tester and Brake Bleeder w/ Instructions

Item: TUL-COMVHT $42.95 View Product
Vacuum kit new

Applies to testing vacuum problems and bleeding brakes on all chassis Pre 1960, 190SL, 110, 111, 112, 113, 114, 115, 108, 109, 107, 116, 123, 126, 201 and 124 chassis. You have asked for it so we decided to deliver. Here is my recommendation for the best vacuum test pump you can buy for the money. Over the years Ive used three different types of vacuum hand pump testers and out of these three this one has proven to be the best all around. It has the best feel of the grip when pumping, the greatest amount of vacuum created at each pump stroke and the highest durability. This unit has a brass body and is very well built. Must better than the Mighty Vac plastic units.

617 Turbo Diesel Vacuum Pump and Check Valve Assembly (Used)

Item: VCM-COMTDVP $175.00 View Product

Excellent used working vacuum pump assembly with valuable working check valve included. This unit fits all 123 and 126 chassis 1981-1985 with the 5 cylinder turbo diesel engines. Also fits 1981 to 1983 240D. NOTE: Before purchasing be sure that you current unit looks just like this one. It is not uncommon that you could have an older style diesel engine in your Benz. If you are experiencing hard breaking and other vacuum related problems, it may be time to replace your ailing vacuum pump.

SKU: VCM-COMTDVP

616 617 Diesel Engine Vacuum Operated Fuel Shutoff Valve

Item: DSL-COMDVSV $39.95 View Product
Diesel Shut off valve

Your diesel not shutting off with the key? - then consider this! FITS THE FOLLOWING: all 123, 116, and 126 chassis from 1977-1985. This includes the 240D, 300D, 300CD, 300TD and 300SD. If your diesel engine is showing signs of shutting off very slowly or maybe not at all, it may be time to replace the vacuum fuel shutoff valve located at the rear of the injection pump. You can check its operation with a hand vacuum pump or you can pull the rubber hose off the back for visual inspection. If there is black oil in the hose its time to change the valve (diaphram has started to leak). This new aftermarket unit comes with new gasket for proper installation. It is a tight squeeze to remove it but not a difficult job for the do it yourselfer.

Vacuum Testing Gauge for all Gas and Diesel Engines

Item: TUL-COMVGT $18.95 View Product
Big vacuum tester gauge

New Vacuum testing gauge with fittings in hard plastic case. This is a very nice gauge will a 4 inch diameter face that is easy to read from a distance. Use this on your diesel to test for vacuum pump operation and to isolate major problem areas. Use this on your gas engine to check for intake leaks, valve timing problems, ignition timing, and fuel injection problems. Can also test low pressure fuel pumps. Gauge reads to 28 inch Hg Vacuum and 0-10 psig pressure.

PLEASE NOTE: This gauge can only test for a working vacuum source. It cannot test for vacuum leaks in individual vacuum components, such as door lock actuators, fuel shut off valve, climate control actuators, etc. To isolate leaks in individual vacuum components you will need a hand pump tester.

123 116 126 Diesel 3/2 Way Vacuum Valve White at Valve Cover

Item: VCM-COM32VV $26.50 View Product
White 3/2 way valve

This special vacuum switching valve is found on most Mercedes diesels from 1980 to 1985. 240D, 300D, 300CD, 300TD and 300SD. Some 85 models do not use this type of valve. On most turbo diesel engines there are two of these located under the black plastic cover on the center top of the valve cover. Most of the time you will find the lever arms worn off. Others may be full of vacuum leaks due to heat and age.

These valves control important functions related to the EGR valve and the automatic transmission. If yours look aged or worn I would recommend you replace them

SKU: VCM-COM32VV

617 Turbo Diesel Vacuum Line Multi Rubber Connector at Valve Cover

Item: VAC-COMMVLC $10.95 View Product
Multi Line Vacuum Connector

Genuine O.E.M. Mercedes part. Hard to find rubber connector for multiple vacuum lines located at top of valve cover. This is a brand new genuine Mercedes OEM part. Fits 123 and 126 chassis with 5 cylinder diesels from 1981 to 1984. 300D, 300CD, 300TD and 300SD. Leaks at this connector will cause leaks in your vacuum system leading to fault EGR valve and possible hard or jerky transmission shifting. Easy to replace. Check to see if yours in cracked or if the hard vacuum lines do not hold tight in the rubber. If you plastic pin block that this plugs into is brittle or broken CLICK HERE to order that part as well. 

3 Way Electric Change Over Valve

Item: VCM-COMTWV $49.95 View Product
3 Way Vacuum Change Over valve

This is a brand new Genuine Mercedes 3 way Vacuum change over valve. It is located in the engine compartment. It fits almost every chassis Mercedes, both gas and diesel models, from the 60’s up through the late 90’s. It has multiple uses such as EGR valve function, transmission control, etc.

SKU: VCM-COMTWV

Genuine Mercedes hard vacuum line

Item: VCM-COMMVL $5.50 View Product
Genuine Mercedes hard vacuum line

We have finally found a source for hard plastic vacuum line! This is genuine Mercedes Benz brand line and is transparent with a yellow stripe. It is found on all 107 116 123 124 126 201 chassis. It is a little more expensive than the other hard vacuum line we carry, so we are selling it in a ONE METER length. It can be used anywhere in the engine compartment.

SKU: VCM-COMMVL

4 mm hard plastic vacuum line

Item: VCM-COMHVL $9.95 View Product
4 mm hard plastic vacuum line

We have finally found a source for the engine compartment hard vacuum line! This vacuum line is white and is 4 mm in size. It is used on all 107 108 109 110 111 113 114 115 116 123 124 126 chassis. You can use it to replace any hard vacuum line on the engine. We are selling it in a 3 meter roll, more than enough to do any replacement job, because we got it at such a good price. It is made by Cohline and is very good quality.

SKU: VCM-COMHVL

123 126 Vacuum Check Valve (yellow)

Item: VCM-123VCV $11.95 View Product
123 Vacuum Check Valve (yellow)

FITS ALL 123 chassis cars from 1977 to 1985 and ALL 126 Chassis cars from 1981-1991, both Gasoline and Diesel models! If you are not sure of your application just pop your hood to see if you have one inline on the driver's side of the engine compartment. This check valve helps to hold vacuum in your door lock system. If not working properly vacuum can leak out of the system after you shut the engine off. Check by blowing and then sucking on the check valve. Air should only pass one way.

SKU: VCM-123VCV

300SD 126 Vacuum Reservoir Tank (used)

Item: VCM-126VTPR $35.00 View Product
300SD 126 Vacuum Reservoir Tank (used)
Fits all 126 sedans 300SD 380SE 1981-1985. 
Excellent used and tested vacuum reservoir tank for a Mercedes 300SD. This units fits inside the rear of the passenger front fender and can be a problem if leaking both in your climate in your climate control system, brakes and vacuum shutoff.

126 Vacuum Door Lock Actuator Special Connector

Item: VCM-126DAC $4.95 View Product
126 Vacuum Door Lock Actuator Special Connector
Needed for 126 chassis when you purchase new door lock actuators with revised part. This is a very hard to find adapter. If you purchase new door lock actuators you will be frustrated trying to get them hooked up in the older 126 sedans as without them there is no way to connect to vacuum line to the actuator body SKU: VCM-126DAC

Late Style Vacuum Pump Main Checkvalve ( Check Valve )

Item: VCM-COMVPC $57.95 View Product
Late Style Vacuum Pump Main Checkvalve

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 their diesel vacuum pumps. Instead of a rubber diaphragm pumping action they designed a piston with a 0-ring seal to replace the diaphragm. This design is inherently more reliable but there seems to be a common weakness in the pumps installed on four and five cylinder diesel built from 1980 to 1985 (excluding the 190D).

To determine which type of pump you have you can check the following: Older style pumps have two large vacuum lines attached to the top of the pump and this newer style only has one.

123 116 126 Diesel Engine Bosch Vacuum Fuel Shutoff Valve w/ Instructions

Item: DSL-COMOESV $72.50 View Product
Bosch shutoff valve

This is a brand new OE Bosch part that fits all diesels 1977 to 1985 (except 190D). If your diesel engine is starting to shut off very slowly or maybe not at all, it may be time to replace the vacuum fuel shutoff valve located at the rear of the injection pump. You can check its operation with a hand vacuum pump or you can pull the rubber hose off the back for visual inspection. If there is black oil in the hose its time to change the valve (diaphram has started to leak). It is a tight squeeze to remove it but not a difficult job for the do-it-yourselfer. You will be amazed at how nice it is having the engine shut right off again right after turning the key off.

Diesel Vacuum Connector Service Kit

Item: VCM-COMVSK $29.95 View Product
Diesel Vacuum Connector Service Kit

FITS THE FOLLOWING: 115, 116, 123, and 126 chassis. Here is a diesel item I have put together that every Mercedes diesel owner should have. When was the last time you knocked one of your vacuum lines off around the oil fiter housing, only to discover when you tried to reattached it that the fittings were swollen and would just not stay connected? I have tried to include enough variety in fittings and hoses for you to become an expert at repairing the vacuum system.

This set includes the following:

Diesel Late Vacuum Pump Internal Rebuild Kit

Item: DSL-COMLPK $69.50 View Product
Diesel Late Vacuum Pump Repair Kit

FITS THE FOLLOWING 123, and 126 1980-1985 chassis (300D 300TD, 300CD, 300SD and 240D 1981-1983 and some late 1980s models with 1 vac plastic line coming out of pump). If you vacuum pump has two plastic lines coming off the cover then this kit won't work. This is the overhaul kit you later model diesel owners have been waiting for. As you can see this kit contains all seals, o-rings and internal check valves. If you are experiencing vacuum problems it may be time to rebuild this pump. The vacuum pump is critical to many systems operation including the brakes, door locks (except on 300SD), climate control, transmission shifting and engine shutdown. This is something you may just want to rebuild as a preventative measure. 20 year o-rings and seals are prone to failure.

Mercedessource Gift Certificate

Item: COM-GFTCRT $25.00 View Product
Mercedessource Gift Certificate

This $25 gift certificate can be used up to one year from date of purchase to be applied toward the purchase any item or items on our website . The certificate will be mailed with an individual certificate number for identification purposes. All the recipient needs to do with it is call in with his order and give us the certificate number.

If you desire a certificate greater than $25.00 can order more than one of these (in $25 increments) or you can call 800-513-5797 with any specific amount you want. This is a great gift to give to a Mercedes enthusiast. There is no charge for mailing a certificate.

SKU: COM-GFTCRT

Diesel Transmission Vacuum Dashpot

Item: VCM-COMTDP $12.25 View Product
Diesel Transmission Vacuum Dashpot

Fits 123 and 126 diesels with vacuum dashpot, most models 1980 to 1985. This green dash pot is located right above your transmission vacuum switching valve which is located on the rear of your fuel injection pump. This is not a checkvalve. Vacuum can pass through it both ways. If it is missing or leaking it can cause hard shifting of your automatic transmission.

SKU: VCM-COMTDP