Bosch Serie 4 Dishwasher: Models, Features and Repair in Dubai

The Bosch Serie 4 is the second step up in Bosch's dishwasher range, between the entry-level Serie 2 and the Serie 6. Bosch's UAE website lists three Serie 4 models, all 60 cm wide: one fully integrated machine and two freestanding ones in brushed steel and brushed black steel. UAE retailers also sell a 13-place freestanding model, the SMS44DI01T, with four programs and Bosch's EcoSilence Drive motor.

This guide explains what the Serie 4 is, which models are sold in the UAE, what its named features do, how it compares with the other series, and what owning one costs in Dubai, including repairs. It is written by an independent Bosch repair company, not by Bosch and not by a shop. We do not sell dishwashers.

At a glance

• On Bosch's UAE listing: SMV4HMX65M (fully integrated), SMS4HMC25M (freestanding, brushed black steel) and SMS4HMI25M (freestanding, brushed steel). All are 60 cm wide
• A retailer model: the SMS44DI01T, listed with 13 place settings, 4 programs, 9.5 litres per cycle and a price of AED 2,499 on one UAE retailer's page. Its listings showed it out of stock when we checked on 2 November 2026
• Bosch's series table gives the Serie 4 a lowest noise level of 40 dB, a 10-year anti-rust warranty on the inner tub, AquaStop with a warranty against water damage, and a one-hour quick program
• Home Connect: Bosch's table lists it for every series, so treat it as a feature of selected models and check the E-Nr
• Repairs in Dubai: typically AED 160 to 540 before 5% VAT, with a 90-day warranty on our repairs

Bosch Serie 4 dishwasher: where it sits in the range

Bosch sorts its dishwashers into four series, and the number tells you the feature level. Bosch describes its own series table as "a general introduction" and tells buyers to verify that a model has the features they want. Use the table below to see the pattern, and the model's specification for the facts.

Two lines in this table are less definite than they look. Bosch lists Home Connect under every series, including the Serie 2, so it cannot be standard on every model, and we read it as "on selected models". The Serie 4 drying row names two systems without saying which model has which. The model's own specification is the final word on both.

The practical reading is that the Serie 4 gets you the quiet running, leak protection and adjustable top rack that the Serie 2 lacks, and stops short of the premium drying systems Bosch reserves for the Serie 6 and 8.

Serie 4 models in the UAE

What Bosch UAE lists

Bosch's UAE dishwasher listing shows three Serie 4 models. The listing gives the series, width and type but not place settings, programs or noise levels.

The SMS models are freestanding and the SMV model is fully integrated. We saw no 45 cm slimline Serie 4 on the part of the listing that loaded, but we did not see every result, so ask before assuming there is none.

What retailers list

UAE retailers also list the SMS44DI01T, a 60 cm freestanding model in silver inox. Carrefour UAE and ACE UAE agree on its main details:

These details come from retailers, not from Bosch, and the listings were out of stock, so check them against the manual and the rating plate of the machine you actually buy. Neither listing gave a noise level in dB, an energy class or a drying system.

Why other model codes appear in searches

Search results for the Serie 4 include codes such as SMS46II01G and SKS62E32EU, and a number of European codes. None of them appeared on Bosch's UAE listing. Bosch sells different models in different markets and years, and a machine from another market can differ in voltage, plug and part codes. If you own one of those, tell us the full E-Nr before a repair visit so that we can check parts. If you are buying, match the code on the invoice to the code Bosch lists for the UAE.

Serie 4 features explained

The features in this table come from Bosch's series table and from the retailer listings above. The right-hand column says what each means in practice, and what it means if something goes wrong.

Several of these affect how you use the machine more than the rest.

Drying: EfficientDry and ExtraDry

Most Bosch dishwashers dry by condensation. The final rinse is hot, the dishes stay warm, steam condenses on the cooler tub walls and runs down. Plastics hold less heat and come out wetter. Bosch's table names EfficientDry and ExtraDry for the Serie 4, but the footnote that explains which models have which is unclear. We therefore do not claim to know how a given Serie 4 dries. The practical advice does not depend on it: fill the rinse aid compartment, load plastics on the top rack, and open the door after the cycle if the machine does not do it for you.

AquaStop and what E15 means

AquaStop is the leak protection. When water collects in the base, a float switches the machine off, and the display shows E15. Bosch's instruction for E15 is to turn off the water supply and contact support. Do not reset it and carry on, because the float has done its job and the water is still coming from somewhere. Bosch's warranty against water damage has terms of its own, so ask Bosch for them in writing. Our dishwasher repair guide explains how to find the source of a leak, and our E15 page has the code details.

Water softener and salt

A listing that mentions a water softener usually means the machine has a salt compartment. If it does, the compartment matters for how clean glasses come out, because the softener cannot work without salt. The setup section below covers how to set it.

Home Connect: do not assume

Bosch's series table shows Home Connect in the same row for all four series. Read as "on selected models", No Bosch UAE source we found confirms Home Connect on any Serie 4, and the retailer listings do not mention it. If app control matters to you, ask the seller to show it on the specific model's specification page before you pay.

Programs: which one to use

The retailer listing for the SMS44DI01T names four programs: Intensive, Normal, Eco and Quick. Other Serie 4 models may have more, so the manual for your machine is the authority. In general terms, these programs suit these loads.

Two practical points follow.

First, high temperatures and long cycles are the conditions Bosch gives for glass corrosion, in its guidance on cloudy glasses. Bosch recommends a gentler, lower-temperature program for fragile glass and says to avoid the highest temperatures and longest cycles. If your machine has no dedicated glass program, check which program the manual suggests, and do not run Intensive on a load that includes good glasses.

Second, a quick program is no shortcut for a poorly loaded machine. If the spray arms are blocked by a tall pot, or the filter is clogged, every program cleans poorly. Our dishwasher guide covers the checks.

Serie 4 vs Serie 2, 6 and 8

Bosch's own series table gives a rough ordering, and the table above shows it. In choosing between series, these points are the ones that decide most purchases.

Choose the Serie 4 if you want quiet running, a flexible rack and leak protection at a middle price, and can live with ordinary drying.

Look at the Serie 6 or 8 if dry glassware and plastics matter a great deal to you, since that is where Bosch puts its premium drying systems, PerfectDry and Zeolith.

Consider the Serie 2 only if noise is not a concern and the household is small. Bosch lists it at 46 dB, six decibels above the others, and its table does not list the adjustable top rack or ExtraClean Zone for it.

The dB figures in the table are the lowest Bosch lists for each series, so they describe the quietest model, not every model. Read the figure on the energy label of the machine you are buying.

Freestanding, integrated, black or steel: choosing a format

The first decision is how the machine fits your kitchen. On Bosch's UAE listing the Serie 4 comes in two formats.

• Freestanding (SMS models). A complete machine with its own front and top. It slides under a worktop or stands alone. The listed finishes are brushed steel and brushed black steel, both with an anti-fingerprint finish.
• Fully integrated (SMV model). The front is hidden behind a cabinet door, which you or your joiner fit. It looks like part of the kitchen, but the controls sit on the top edge of the door and are visible only when it is open. It is also harder to pull out for a repair.

Semi-integrated machines have a visible control panel above a furniture door, and slimline machines are 45 cm wide. Neither appeared on the part of Bosch's UAE listing that we could see, though other markets sell them. If you want one, ask Bosch or a seller to confirm the model and its availability here, and check its code against the format you need.

What to measure

• Height, width and depth. One listing gives the freestanding SMS44DI01T as 84.5 × 60 × 60 cm. Built-in machines have different heights and need a particular niche, so use the installation guide for the model.
• The door swing. The door opens downward and needs clear floor in front of it, plus room for the rack to slide out.
• The water supply and the drain. The machine needs a tap or isolating valve within reach of the inlet hose and a drain connection, often shared with the sink waste.
• The power socket. A socket within reach, not an extension lead.
• The route to the room. Measure the door and lift as well as the space.

Installation checks before the first cycle

Many early problems come from installation, not from the machine. The manual gives the exact steps for your model.

1. Connect the inlet hose, hand-tight, check it for kinks and open the tap fully.
2. Connect the drain hose without kinks, following the manual's guidance on position.
3. Level the machine so that the door closes properly and the racks slide.
4. Fill the salt compartment if there is one, add rinse aid, and set the water hardness.
5. Run a first cycle empty and watch it fill, wash and drain. Check for drips at the hose connections and the door.

A leak at the first cycle is cheap to fix with the machine still pulled out, so check before you push it into the space.

Setting it up: salt, rinse aid and hardness

Cloudy glasses, a white film and wet plastics account for many dishwasher complaints, and they usually come from setup, not from a fault. The settings below matter for any Serie 4 with a water softener.

1. Set the water hardness. Bosch tells owners to check the hardness with their water provider or with test strips and to set the machine's softener to match. A setting that is too low leaves limescale. One that is too high softens the water more than it needs to and risks corroding glass. The manual shows how to change the level on your model. We do not quote a figure for Dubai tap water, because we did not find a source we trust, so test your own tap.
2. Fill the salt compartment if the machine has one. Use dishwasher salt only, never table salt. The softener stops working when the salt runs out.
3. Use rinse aid in every wash. Bosch says it reduces surface tension so water runs off, prevents spots and neutralises detergent residue. An empty rinse aid compartment is a common reason for wet plastics.
4. Descale now and then. Run a dishwasher descaler on an empty machine, following the pack.

A quick test tells you whether cloudiness is limescale or glass corrosion. Rub a glass with a cloth soaked in white vinegar. If the cloudiness comes off, it was limescale. If it stays, the glass is corroded, which is permanent. Our dishwasher guide has the full steps.

Silence Plus, Super Silence and noise

Searches for the Serie 4 often include "Silence Plus" and "Super Silence". They are labels Bosch uses on dishwashers, and the series tables we read do not define them. What the tables do give is the lowest noise level for each series: 40 dB for the Serie 4 and 46 dB for the Serie 2. Retailer listings say the EcoSilence Drive motor gives low noise but give no dB figure for the model we looked at.

To check how quiet a given machine is:

• Find the noise figure on the energy label or in the specification, and compare the same type of figure between machines.
• Remember that the figure is for one program. Intensive programs, drying phases and pump cycles are louder than the quietest cycle.
• Allow for the kitchen. An open-plan layout and hard surfaces make any machine seem louder.

A machine that becomes noticeably louder than it was has changed in some way. A rattle is usually the load or a loose spray arm, a grinding sound is usually debris in the pump, and a loud hum with no water movement means a jammed or failing pump. Do not keep running a dishwasher that grinds.

Loading a Serie 4 so it cleans and dries

Most "the dishwasher doesn't clean" complaints are loading problems. The manual's loading diagram for your model wins over this list, but these habits apply to any Bosch with an adjustable top rack.

• Face dirty surfaces toward the centre and the spray arms. Bowls and plates face inward and slightly down.
• Keep tall items out of the spray arm's path. A pan handle poking through the rack stops the arm turning. Spin each arm by hand before you close the door.
• Put pots and baking trays in the lower rack, and put the heaviest soil where the ExtraClean Zone is, if your model has one.
• Load plastics and light items on the top rack, and weigh down anything that can flip over and fill with water.
• Do not nest. Spoons stacked together wash as one surface. Mix cutlery heads up and heads down if the basket has no separators.
• Scrape, do not rinse. Remove bones and solids, but leave ordinary residue. Modern detergent needs something to work on, and a thorough pre-rinse mostly wastes water.
• Raise or lower the top rack for the load. On a Rackmatic-type rack, drop it for tall pots below and raise it for tall glasses above, then check the arm still clears.

Wooden items, cast iron and some aluminium and non-stick pans do not belong in a dishwasher. Check the maker's care label on pans and knives before you load them.

Five checks before you book a repair

Some faults are fixed in a few minutes without a tool. Try these first, and note what you see so the technician can use it.

1. Is the water on and the door shut? A half-open isolating valve gives a slow or empty fill. A door that has not latched stops the cycle starting.
2. Is the filter clear? Remove it and rinse it. Food in the filter causes slow draining, poor cleaning and smells.
3. Is the drain hose kinked or the sink waste blocked? If the sink drains slowly too, the machine is not the problem.
4. Is there water or a code showing? Write down the code, or photograph it. Do not reset a leak code and keep running the machine.
5. Has the power tripped? Check the socket or isolator. A tripped breaker on a dishwasher can point to a wet fault, so do not keep resetting it.

If the fault is still there, book. If water is leaking, switch off at the isolator and close the tap first.

Owning a Serie 4 in Dubai: care and servicing

A Serie 4 needs very little, and most of it is ten minutes a month.

1. Clean the filter. Remove the lower rack, take out the filter set in the base and rinse it under running water with a little mild soap and a soft brush. A clogged filter is a common cause of an E22 code.
2. Check the spray arms. Lift them off, clear the nozzles with a toothpick and make sure they spin freely.
3. Wipe the door seal and the tub edges where food collects.
4. Top up the salt and rinse aid, and check the hardness setting.
5. Check the hoses. Look at the inlet and drain hoses for kinks and the connections for drips.
6. Run a hot cycle with a dishwasher cleaner or descaler on an empty machine.

Know the signs that a repair is due:

• Water left in the base after a cycle
• An E15, E22, E24 or E25 code, or four flashing lights
• A leak at the door, under the machine or at the hoses
• A grinding or humming noise
• Cold dishes at the end of the cycle, or cycles that run far longer than they did
• Glasses that stay cloudy after you have checked salt, rinse aid and hardness

Each of these is cheaper to fix when it first appears. For a check by a technician, the AED 99 inspection looks at all of these, runs a test cycle and gives a written quote for anything that is wearing. You decide what to approve.

What a Serie 4 repair costs in Dubai

A Serie 4 has the same fault list as other Bosch dishwashers. The table shows typical prices, excluding 5% VAT. The AED 99 inspection is deducted from the repair if you go ahead.

The part and the access decide where in the range a quote falls. A drain pump costs far less than a control module, and a fully integrated machine takes longer to pull out and refit. Our dishwasher repair guide explains each fault and its error codes, including E09, E15, E22, E24 and E25.

Repair or replace a Serie 4?

Use a real new-machine price as the reference. One UAE retailer listed the SMS44DI01T at AED 2,499, although the listing was out of stock. A workable rule is that a repair costing more than about half of a comparable new machine, or a machine past ten years old with two serious faults, is a case for replacing. Half of that price is about AED 1,250.

The repair prices in the examples are from our placeholder ranges, so check your own written quote.

• Three-year-old Serie 4, drain pump failed, quote AED 300. That is 12% of the new price. Repair it.
• Eight-year-old Serie 4, control module fault, quote AED 520. That is 21% of the new price. If the tub, racks and seals are sound, repair it. If the door seal is split and the racks are rusting, this is the first of several bills.
• Twelve-year-old Serie 4, failed heater and a leaking pump housing, combined quote AED 850. That is 34% of the new price, but the machine has two faults and is well past the age when more follow. Replace it.

Two points tilt the decision. A new machine comes with a manufacturer warranty, while our repairs carry 90 days on the repaired fault. And an integrated machine costs more to remove and replace, since the replacement has to match the niche and the door panel. We will tell you when a repair is not worth it, and if you decline, you owe only the inspection fee.

How to book, and the warranty on our repairs

You book online or by WhatsApp. We confirm a two-hour window, and the technician messages you on WhatsApp 30 minutes before arriving. On site, they diagnose the fault, show you the failed part where possible, and give you a written quote with the part number. Every repair carries a 90-day warranty on the parts fitted and the labour for the repaired fault. We list the part number on a VAT invoice. If your Serie 4 is still inside Bosch's warranty, contact Bosch first. Our service center page explains how to decide, and our customer care guide lists Bosch's own contact routes.

We repair Bosch dishwashers across Dubai, with typical arrival times of 50 to 75 minutes after the technician sets off. Areas include Dubai Marina, JLT, Downtown Dubai, Business Bay, Palm Jumeirah, JVC, Dubai Hills, Mirdif and Al Barsha.