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Vacuum CleanersBGS5SIL2GB

GS-50 ProSilence 66
Vacuum cleaner
BGS5SIL2GB - black


The quietest bagless vacuum cleaner on the market. Tested under extreme conditions

  • Unique SensorBagless™ Technology: incredibly powerful, incredibly quiet, minimum maintenance required
  • Incredibly quiet (66dB) due to the integrated SilenceSound System
  • QuattroPower System: Bosch's high performance technology for outstanding cleaning results with low energy consumption
  • Integrated RotationClean System: no contact with dust during the filter cleaning process
  • Washable HEPA filter: suitable for allergy sufferers - no follow up costs. Dust re-emission class A.
  1. Overview
  2. Reviews
  3. Technical specs
  4. Additional documents


Top of page
  • EasyClean Thanks to its EasyClean System, the dust container can be removed in just one movement at the touch of a button and is so easy to clean as it does not have any corners in which dirt can accumulate.
  • 10 m operating radius.
    10 m operating radius. High degree of flexibility and convenient vacuuming thanks to long cable for 10 m operating radius. Fewer socket changes.
    10 m operating radius.
  • SensorBagless™ Technology
    SensorBagless™ Technology Thanks to the sensor-controlled performance monitoring system, this unique technology not only ensures an outstanding level of cleaning performance — it also keeps maintenance to a minimum. No follow-up costs as the washable high-tech filter materials last as long as the appliance and there is no need to buy replacement dust bags.
    SensorBagless™ Technology


Top of page
  • Performance control Optimum cleaning performance for all floors. Thanks to the electronic performance control, it can be easily adjusted using the rotary control.
    Performance control

Rated 2 out of 5 by from Not goodI bought it because it was advertised as being quiet, which it isn't particularly. It is heavy though and cumbersome. The filter is annoying to empty. The handbook said there was a brush to clean the mesh of the filter, but there wasn't It also seems to,indicate that the bottom part of the filter screws off when it is obviously factory fused. I am reduced to cleaning the filter standing over the bin, brushing the mesh with an old toothbrush and poking out bits from between the 'lugs' at the base with a skewer. Today I started to vacuum with a clean filter and empty collecting container and the red light came on after a couple of minutes. It is VERY annoying to have to stop and 'stir it' which has very little lasting effect. I had to do it four times while vacuuming the kitchen floor. And yes, The retracting cord has a mind of it's own and works when it feels like it. I've had it for about 2 years, and don't really want to waste money by replacing it, but I'm going to - soon!
Date published: 2017-04-06
Rated 5 out of 5 by from See all positve reviews...END OF!!I travelled a 5 hour round trip on disrupted 'Great' Western journeys to purchase a used BOSCH - GS-50 ProSilence 66 Vacuum cleaner BGS5SIL2GB - black model, based on the make, it's description (subsequently well lived up to) & outstanding is truly an absolutely magnificent work of art in every way..& as with any refined, quality, creation, simply requires mastering / mistessing, hence I suspect there may be undeserving others for whom such as Henry may suffice...
Date published: 2017-04-02
Rated 5 out of 5 by from Simply greatBought this a soon after it came out. I have to tell you, we have seriously abused it for all houshold tasks including using it on the diy jobs, vacuuming up after plasterer, builders, and all that fine fine dust. We haven't cleaned or replaced the filters, so yes the little red light comes on occasionally but other than that, it hasn't missed a beat. Yes I accept it isn't the most manoeuvrable of machines but that's more the style of cleaner than the actual cleaners fault. But I certainly haven't had any issue with the hose that others have commented on. I am happy to recommend it and would be happy to buy another
Date published: 2017-02-25
Rated 5 out of 5 by from A Great vacuum cleanerI have had this vacuum cleaner for over two years now and I have not had any problems with it, it has phenomenal suction power even when it is full of dust and fluff it's also very quiet even on the highest power setting. I would recommend it to anyone looking for a quality vacuum cleaner.
Date published: 2016-11-28
Rated 3 out of 5 by from Not happyI bought this vaccum because of the silent noise but the sucking power is poor after a few time use.
Date published: 2016-11-21
Rated 4 out of 5 by from Cable jammed!Only had this hoover a few weeks and I am really impressed with it until today - the retractable cable has jammed and I cannot pull it out much more than a few feet! Although it has not stopped me using the hoover I am unable to vacuum the stairs and after having checked I cannot see how I can access the cable to fix the problem.
Date published: 2016-11-19
Rated 4 out of 5 by from Great Hoover Pooley Made AttachmentsI Have had this Vacuum cleaner for 2 years.After having our second child, me and my wife decided to INVEST in a high standard vacuum cleaner. After doing some research we decided to go for the Bosch silence 2 because of the power and the energy consumption and the quietness of the hoover. The vacuum its self is great as long as you empty it regular and clean the filters often, but the attachments are really cheaply made and fall apart quickly. The main attachment I have replaced twice and now the metal tubing itself is broken. I have repaired it with black nasty and cable ties, but this means no other attachments are able to be used without me cutting black nasty off and cable ties off. This is a massive let down considering the cost of the product! I would assume the parts would last the life of the hoover!!
Date published: 2016-11-07
Rated 2 out of 5 by from PainI bought this last year as I needed a vacuum cleaner that was easier to use now I am ill. How wrong I was. The hose keeps falling out and is now taped up and the light goes off all the time. I've checked and cleaned all the filters. It only has light use yet the metal pipe has gone through the very cheap plastic utensils and I'm now worried it will scratch new flooring. Sounds great when you read it all on paper but the amount of people having the same issues sounds ominous. I get the feeling I've wasted money I simply can't afford.
Date published: 2016-11-03
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Technical specs

  • Performance
    • Innovative SensorBagless™ Technology for excellent dirt pick up
    • Hepa rated Gore filtration system retains dust particles on the filter surface for ease of cleaning
    • QuattroPower System: Bosch's high performance technology for outstanding cleaning results with low energy consumption
    • Continuous performance monitoring thanks to SensorControl System
    • Cleaning performance class C on carpets (according to energy label (EU No. 665/2013))
    • Best cleaning performance class on hard floor (Class A according to energy label (EU No. 665/2013))
    • SilenceSound System™: innovative insulation materials, motor suspension, optimised airflow and sound reduced accessories result in an extremely quiet operation of 66 dB(A)
    • Energy Efficiency
      • Energy efficiency class A
      • Hygiene
        • SensorBagless technology combined with the RotationClean system ensures optimum performance for the lifetime of the machine
        • Lifetime filter material: Cartridge filter with GORE™ CLEANSTREAM® membrane and washable lifetime HEPA hygienic filter recommended for people with allergies
        • Washable HEPA filter: suitable for allergy sufferers - no follow up costs. Dust re-emission class A.
        • Comfort
          • Easy to remove and empty 3 l dust container
          • Especially quiet SilentClean Premium adjustable floor tool with clip fitting, for extra powerful cleaning performance
          • Hard floor nozzle especially developed for in-depth cleaning of floors with crevices and gaps such as tiles and floorboards. Suitable for gentle cleaning of sensitive floors like parquet.
          • Durable metal telescopic tubes
          • Attached tools: crevice nozzle, upholstery nozzle and removable furniture brush
          • Variable suction control for vacuuming a variety of surfaces
          • Ergo grip handle
          • 3 litre usable capacity
          • Parking and storage aids
          • Automatic cable rewind
          • 10 m operating radius
          • Four swivel wheels for extra manouevrability
          • Weight: 6.4 kg
          • Energy label values
            • Energy efficiency class: A
            • Annual energy consumption: 27 kwh
            • Dust re-emission class: A
            • Cleaning performance class carpet: C
            • Cleaning performance class hard floors: A
            • Sound power level: 66 dB(A)
              Technical specs

              Manuals and Downloads

              • Download

                As your home device works perfectly, please refer to our clear instructions for use.

                Instruction manual
              • Download EU Data Sheet
                Download EU Data Sheet

                Here you can download the EU datasheet or view it on the screen

                PDF Download
              • Download EU Energy Label
                Download EU Energy Label

                Here you can download the EU energy label or view it on the screen

                PDF Download

              Online Survey