123, Vacuum

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.

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

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. 

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.

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.

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.

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

FITS THE FOLLOWING: all 123 chassis cars from 1977 to 1980.

Here is a great way to save some money repairing your early 123 vacuum door lock actuators. When they go bad it is almost aways due to cracks in the rubber diaphrams. These can be easily replaced. Sold in sets of 2. You can also purchase my 123 vacuum door lock repair guide which will show you how to test for leaks and take the door panels off to get to the acutators.

Fits 123 1980 to 1985.

If your trunk lock is acting up may be a bad vacuum lock assembly in the trunk. This is a brand new vacuum unit in perfect condition, and includes our 123 vacuum door lock troubleshooting guide! THIS WILL HELP YOU FIND YOUR LEAKS FAST!

Fits the Following: All 123 Chassis 240D / 300D / 300CD sedans and coupes from 1977-1981. This is a brand new VDO brand Vacuum Fuel door actuator. Does not come with instructions.

Fits 123 chassis sedans coupes and wagons 1977-1979 only.

This is a good used and tested vacuum door lock actuator that fits all 123 chassis of the years listed only. This is the early style. You have one of these in each of the right side front and rear door and left side rear door. There is not one in the drivers door, that has a switch only. If your vacuum door locks are not working properly often it's these door lock actuator diaphrams that are leaking. Be sure to purchase my Advanced 123 Door Lock Troubleshooting Guide for more information on diagnosing your problem. These units come without the control rod you can use the control rod off one of your actuators it is easly attached with a small c clip