I’d personally go for the G7655SCVi from the outlet with the extra height interior of your units will accommodate for it.
We have a G7130SC which is just over a year old now, which replaced a 2022 Siemens IQ700 so feel like I can compare both quite well.
First things first, my experience/comparison isn’t usual in that the Siemens IQ700 had issues from day 1. It was delivered with a defective salt valve (which was so loud you could hear it through the house), had to be almost rebuilt by the engineer when a couple months old because they couldn’t trace the noise, and also never cleaned properly (despite functioning as it should) - and what’s more the zeolite drying would just bake all the dirt back onto the dishes. After a two year back and forth battle with Siemens & our retailer, our retailer eventually agreed to stop the infinite repair loop and to refund us 2.5 years down the line. In fairness I’d say this is no reflection really on BSH dishwashers as a whole - I believe it was a lemon that we had, and relatives and friends have BSH who are generally happy, but it’s put us off for a while.
What I didn’t like about the Siemens from a design perspective was that there wasn’t any decent form of quick cycle - the quickest hot wash was around 90 mins or more if you had auto open selected (1:50 if I remember right). I didn’t like the racking much either, but that’s more personal as I’ve been used to Miele racking for almost 20 years previous. I also find generally with BSH dishwashers they don’t clean well in the corners of racks, and because the cutlery tray only had a sprinkler rather than a spray arm you can’t just load anything anywhere. This isn’t too much of an issue provided you bear this in mind when loading.
We went back to a Miele dishwasher as a leap of faith, knowing the G7000 series aren’t as well built as the previous G6000 series I had, and also because mums G4940SC, whilst great at washing is hideous at drying. However it was the same price as the Siemens was, offered a similar feature set, and not wanting to go with BSH again it was the only real option we had for a quality dishwasher. And I’m glad we took the plunge - it was almost like going back home.
The Miele dishwasher has a better range of cycles in my opinion. They all clean really well, and you’ve got everything from a decent quick cycle in 55 mins to a 3ish hour intensive wash, more if you add options. I generally use the Auto cycle overnight, which only uses around 1kWH and 9-10l with extra dry enabled, and it will average 3 hours - an hour less if you select the Quick option. If I need a quicker turnaround, Powerwash is great at 1:20 - 60°C wash and full rinses and drying in that time, and that hasn’t turned out anything dirty yet, even baked on dishes such as macaroni cheese. Quick Powerwash (selecting Powerwash+Quick, similar to the W1s) will still clean exceptionally well in less than an hour, but only has a 25 minute wash time so anything such as egg and porridge might be a challenge. Both Powerwash and QPW use higher pressure and more water in the wash (4l versus 3l) to be able to deliver the results comparable to the Auto programme in a shorter time. I also generally find on Miele the Auto/Powerwash cycles will clean almost anything, and you rarely need to use Intensive. The only time Intensive really gets used is when my partner has done some Asian cooking, or if I’ve a particularly tough roasting dish from a Sunday and just want the extra insurance for it to come clean rather than out of necessity.
I find that both the IQ700 and Miele barely trigger a prewash on Auto - but they tend to add interim rinses instead which gives the same effect as washing any bits and residues away on the Miele.
I also really like the Extra Clean option which forces a prewash and an extra rinse on all cycles, and a higher wash temperature on Auto. I don’t use it often, but I find it useful when washing the drip tray and interiors of our bean to cup coffee machine, or a tomato based dish where I don’t want tomato sauce stains on a longer wash period. It’s also good if you want an extra prewash but not necessarily longer cycle - with Powerwash it’s around 1:35-1:40 with extra clean enabled, and around 1:10-1:15 with QPW.
I personally much prefer the racks of the Miele. The bottom basket especially with the open concept at the back is much easier to load and adaptable - and you can load anything anywhere without really thinking about it, whereas with BSH over the years I find you have to stack things against each other more. Also because of the spray arm at the top, you can load anything anywhere in the cutlery tray - even corners, and it will get clean.
Drying isn’t much of an issue or concern for me - auto open triggers about 10 mins on average before the cycle ends so most things are flash dried by the time the cycle is complete. Plastics are generally dry but you might find a bit of water left on the seams of lids or underside or cups - but I found that even with Siemens Zeolith drying anyway. On the Siemens with auto open selected it added around 20-25 minutes onto an already long cycle, whereas this doesn’t make any difference in the cycle time with the Miele. I find with the extra dry option enabled on the Miele (which triggers a 70° final rinse), results are similar to Zeolith, and better than standard condensation drying on my grandparents’ entry level Bosch slimline.
As a side note, as mentioned before my parents have a Miele G4940SC, an entry model from 2018 without auto open and that is abysmal at drying, the auto open models are much better. In fact I believe all Miele dishwashers in the UK portfolio have auto open now, so drying should be good across the board.
In general I find the Miele more economical to run and is less water hungry in general. Most cycles average 0.9-1.1kWH and around the 9-10l mark with 3-4 water changes. The intensive cycle with Intense zone and Extra clean selected uses around 1.5kWh and 13l - that’s with 5 water changes.
Quietness wise, even though our IQ700 was the same dB rating the Miele is quieter to my ear. It may not have a silent drain pump but it’s not intrusive at all, the wash action is a lot softer (it’s only more noticeable when using high pressure on QPW for example, and even then it’s still quieter than a fridge), and the drying fan is also a lot quieter. BSH dishwashers I’ve noticed always have a “slurping” noise from the wash action, not unpleasant or loud but more noticeable.
I have also found in general with Miele dishwasher over the years is that they generally are more economical with salt, and you very rarely have to clean the filter as they largely keep themselves clean. I find with BSH dishwashers personally filter cleaning is a monthly job.
One thing I don’t like about the Miele and find rather unnecessary is the autodos with the Powerdisk. You are locked into using the Powerdisk detergent which IMO is overpriced especially as it’s only average at best detergent. Even the Fairy platinum pods we use seem extremely good value per wash in comparison. Although some in the depths of the internet have modded Powerdisk pods with their own powder, this and any issues arising from doing so voids the Miele warranty so isn’t worth the risk.
Reliability wise - I’m not sure if one is better than the other, it’s more personal preference and taste as to which dishwasher you like and what works for you best. I do think the haptic experience is generally better on Mieles (the racks glide better and the doors open and close more smoothly), even though I do think there is a noticeable quality difference beteeen the G7000s and my previous G6000 series. But the mid-upper end BSH machines with the stainless steel base are still well made too.
I hope this gives you a good insight and sorry for rambling on - just wanted to give my own personal experience from using and having both brands quite extensively through the years. I think both are good options, I am probably biased somewhat as I personally prefer the Miele dishwashers (possibly because I’ve been used to them for 20 years now between my parents and I), but that’s not to say BSH is a bad option at all - I think it all depends on what you can get that offers best value for you (money and features wise) at the time.
Jon
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