Bosch SMS40C12GB Dishwasher, White

Product information

With an A+ in energy rating, and two A ratings for washing and drying, the Bosch SMS40C12GB dishwasher will be welcomed into any home.

Precision engineering has resulted in a ServoLock door on this unit, which allows the door to close virtually by itself and with minimum effort on your part. A child lock protects from scalding, and tamperproof controls ensure washes are not interrupted by curious hands!

Thanks to the ActiveWater hydraulic water system, this dishwasher uses 12 litres of water per wash, and every single drop is used to the maximum. The SMS40C12GB has a 70°C intensive cycle to cut through and clean heavily soiled pots and pans, and if you are looking for more speed, a dedicated 45ºC quick wash will clean lightly soiled items in just 29 minutes.

The Bosch SMS40C12GB runs extremely quietly at just 48dB and features a 1-to-24-hour time delay option, so you can set it to run during lower energy tariff times. And when running at night, the integration of internal anti-flood technology gives you extra peace of mind, automatically cutting off the water supply if leakage or flooding occurs.

The upper basket is height-adjustable, even when fully loaded, and the SMS40C12GB features a removable Vario basket as a more flexible alternative to a cutlery basket, allowing you to effortlessly unload cutlery. With 3 different loading heights thanks to the Rackmatic height-adjustable top basket, and 4 foldable racks and shelves throughout the machine, a large variety of dishes can easily be accommodated. This appliance also includes a large item spray head that can be utilised for getting your oven shelves or barbecue grill clean.

Bosch guarantees that if an appliance is discontinued, its major components will be available for at least 10 years afterwards in the event of a part needing replacement.

  • A+ energy rating
  • Aquamix - Glass protection and water softening system for optimal results
  • Self-cleaning filter system keeps the dishwasher in good order without the need for you to periodically empty the filter
  • Vario basket system makes unloading cutlery easy
  • Silver baskets (without handle)
  • 3 stage Rackmatic height-adjustable top basket
  • Highly efficient water usage with the ActiveWater system
  • Residual heat drying system
  • DosageAssist dispenses detergent evenly
  • Automatic detergent detection
  • Aquasensor III, Load Sensor
  • Regenerative electronics
Adjustable racking Information Lets you move the racking around to fit large or awkward items
Automatic Load Adjustment Information Automatically adjusts water level for a smaller load, thus saving time and money
Delay Start
Yes - up to 24 hours
Delicate Wash Information A gentle clean, designed to protect delicate items, such as glasses
Digital display
H84.5 x W60 x D60cm
Dishwasher Size
Drying performance Information Graded on performance A - G, with A being the highest grade
Eligible for International Delivery
Energy Consumption Per Standard Cycle
Energy Rating Information Graded on performance A++ - G, with A++ being the highest grade
Estimated Annual Energy Consumption Information Typical annual amount used by a 4 person household
Estimated Annual Water Consumption
Model name / number
Noise Level Information How noisy, in decibels, the machine is. The lower the dB, the quieter the appliance
Number of Programs
4 programmes and 2 special options (Speed Perfect, Half Load)
Online Exclusive Information This product is not available in John Lewis branches
Overflow protection Information An anti-flood device prevents the machine from being damaged by flooding from the inlet pipe
Place Settings Information The number of items- plates, glasses and cutlery a dishwasher can hold, per table setting.
Program Sequence Indicator Information Tells you progress of washing cycle
Quick wash Information Speedy programme when you need items cleaned quickly
Time remaining indicator Information Tells you how long the programme's got to go
Wash performance Information Graded on performance A - G, with A being the highest grade
Water Consumption Per Standard Cycle


UK mainland delivery within 7 working days; may be longer for N Ireland, island and rural postcodes


Express 2 working day delivery to selected areas


International delivery not available


We want you to be happy with your purchase. If you're not, just return the products to us or to one of our shops. Unless faulty, we'd like this to be within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Depending on the type of product, you can make free returns via our shops, Royal Mail (or courier collection for large or heavy items), Collect+ or via MyHermes.

Find out more about returning products


Dishwasher Disposal

The charge for this service includes removal and disposal of your old dishwasher for reuse or recycling.

Dishwasher Connection

The charge for this service includes:

  • Connection of the new appliance to a standard domestic water connection point within 1 metre of the installation location
  • Connection of the appliance to an existing 3-pin 13amp electrical point within 1 metre of the installation location
  • Connection of the appliance to an existing waste outlet within 1 metre of the installation location
  • A test wash to ensure the appliance is filling and draining correctly
  • The removal and disposal of all packaging

Please note: we are unable to install a freestanding dishwasher where your current appliance is an integrated dishwasher.

Q & As


Bosch SMS40C12GB Dishwasher, White 4.7 5 47 47
Excellent Value Very pleased with this dishwasher, arrived on time and easy to connect. We use the the 30 minute programme all the time, crockery and glasses sparkling. Quiet too. 09 July 2014
good machine. quiet but not great at drying Love how quiet this machine is. You would hardly know its on! Gives a really good clean but the only let down is that it doesnt dry the items well. I often have to towel dry after the full cycle. 08 July 2014
Deafeningly quiet!!! Fantastic dishwasher! It's the quietest one we've ever had. We're a family of four who like to cook and needed something robust, efficient and above all good value for money. This dishwasher punches well above it's weight! 08 July 2014
Great service and product. Excellent dishwasher, copes with our family of 6's dishes etc very well. Great service from John .lewis delivering it to our island home with no problems! 08 July 2014
Very very pleased The 29 minute programme is very handy. Provided you do not unload immediately it finishes the dishes are dry. A lot of people have said the eco programme of 3 hours is too long, there is a speed perfect button which reduces it to one and half hours. Overall I am delighted. I like the set up. I do not consider it to be too noisy. The last dishwasher I had maybe had more programmes, but I never ended up using them. Would recommend this model. 08 July 2014
Worth the money! Great machine, cleans really well as previous new user comments. Only small critiscism is that it is actually slightly smaller inside than our old Hotpoint Aquarias which 'gave up the ghost' after 15 years but don't let that put you off. 29 June 2014
Excellent Quiet and Efficient This is a top quality product. It performs well was easy to install and load and has a good variety of useful programmes. Above all it is really quiet which is particularly useful when running at night or when dining nearby. First class and thoroughly recommended. 17 June 2014
Read the manual! I thought there were two drawbacks to this dishwasher. Otherwise brilliant. The first was awkward basket sizes with limited room for big plates. The second was a wet finish - often mentioned in reviews. I'll confess to not reading the manual. The top basket can be set higher, easily, so there's more room below, and you can with a bit of button pressing faff, set the final rinse hotter, so the wash is drier upon finishing. So it pays to read the instructions I guess...a good little machine. 1 year in now and reliable, faultless performer. 14 June 2014
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Additional services

  • 2 year guarantee included

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