Description
Comparison points and tradeoffs
When comparing MTC-3056 Vacuum Control Valve for Mercedes-Benz 240D 300CD 300D 300SD 300TD OEM# 002-997-53-36 – Heavy Duty with other Vacuum Valves options, use this source-backed detail as the primary discriminator: Heavy Duty Replacement Part.
Use this second fact to evaluate the tradeoff: High quality part replacement parts engineered from the highest quality materials. Our products have a proven track record of longevity, quality and cost savings. Fits Mercedes-Benz: 240D (1982-1983), 300CD (1978-1985), 300D (1977-1985), 300SD (1978-1985), 300TD (1979-1985). A third point to compare across alternatives is: Application note: About this item Heavy Duty Replacement Part Brand New Like OEM Fits Mercedes-Benz: 240D (1982-1983), 300CD (1978-1985), 300D (1977-1985), 300SD (1978-1985), 300TD (1979-1985) High quality part replacement parts engineered from the highest quality materials.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
High quality part replacement parts engineered from the highest quality materials. Our products have a proven track record of longevity, quality and cost savings.
Fits Mercedes-Benz: 240D (1982-1983), 300CD (1978-1985), 300D (1977-1985), 300SD (1978-1985), 300TD (1979-1985)
Source product highlights
About this item
- Heavy Duty Replacement Part
- Brand New Like OEM
- Fits Mercedes-Benz: 240D (1982-1983), 300CD (1978-1985), 300D (1977-1985), 300SD (1978-1985), 300TD (1979-1985)




Customer –
Got here quickly, worked.
Hugo Jorge Homs –
USO DE MI CARRO
Au-Met –
The product is a perfect fit and does what I need it to do
alex –
This product arrived defective in every possible waythe guide pins are seized causing it not to be installable as intended. They must be able to move up and down in their holes.NO ACTUATION OF VALVE MECHANISM! VERY VERY VERY STIFF ACTION, and No click, no confidence!!!!!The hole for the screw is mis sized by a 1/32 inch. (requires redrilling)Overall a completely faulty part and i am requesting refund.a 2 minute job will become a 10 minute job or more to install, and at that it STILL WON’T WORK PROPERLY. THE VALVE DOESNT ACTUATE!!!!
MR –
garbage
ML & KS –
It took a bit of a struggle to get it working just right as the vacuum valve wasn’t functioning perfectly out of the package. That said, MB USA said this part is discontinued, so am glad this reproduction exists. To anyone buying it, just be prepared to put in a bit of elbow grease and tinkering to get it sitting and running just right.
TheBeetleDeuce ✌🏻 –
Great replacement option on the W123. Worked great and solved a vacuum issue. Zero issue after 5K miles.