Koch-Chemie Multi-Purpose Cleaner "Mzr" All-Purpose Cleaner 1000ml

Pull oil, nicotine and grease out of the pores with Koch-Chemie Multi-Purpose Cleaner Mzr

What is Koch-Chemie Multi-Purpose Cleaner Mzr? An alkaline heavy-duty cleaner with pH 12.5 that breaks down oils, grease, nicotine, soot and grey ingrained dirt on fabric, plastics and industrial surfaces — a concentrate you dilute anywhere from 1:5 to 1:50. Keep it off soft-touch surfaces, leather and painted panels.

Koch-Chemie Mzr is an alkaline cleaner concentrate from Koch-Chemie that chemically lifts stubborn organic dirt out of pores and fibres. The pH of 12.5 in the concentrate saponifies fats and oils through alkaline hydrolysis — something pH-neutral cleaners simply can't do chemically. Dilute it 1:10 and you sit around pH 11, which is plenty for most interior surfaces in the car. Koch-Chemie has it under an official Daimler approval, which is why detail shops and workshops keep it on the shelf as a default.

• Dilute from 1:5 to 1:50 — one concentrate for any kind of dirt. For heavy jobs like motor oil or nicotine films you work at 1:5. For everyday interior cleaning 1:20 to 1:50 is plenty. One litre of concentrate at 1:20 makes 21 litres of working solution — at €7.67 a litre that's €0.37 per litre of ready-to-use cleaner.
• Cuts through what pH-neutral cleaners leave behind. Nicotine, greasy fingers on headliners, ingrained grey on light fabric seats — these are the jobs where the Mzr earns its keep. The alkaline formula saponifies fatty acids and emulsifies oil residue rather than just pushing them around the surface. Where a neutral all-purpose cleaner needs two passes, the Mzr does it in one.
• Daimler approval for workshop use. The official approval confirms material compatibility on Mercedes-Benz factory fabrics and plastics. Detail shops, fleet managers and independent workshops keep it as their standard interior cleaner — one concentrate for the whole fleet instead of a shelf full of specialty bottles.

Detailing1's tip from the shop: Never spray the Mzr neat onto a surface — pH 12.5 in the concentrate attacks soft plastics and pigments. Always dilute in the bottle first and start at 1:10. If that does the job, dial down to 1:20 next time. The most common mistake we see day-to-day: people run the dilution too strong and end up with white patches on dark plastics because the alkalinity has attacked the surface. Two passes at 1:10 give you a better, more even result than one pass at 1:5.

1:10 on the headliner. 1:50 on the door handle.

Koch-Chemie Mzr works as a concentrate that you dilute fresh for every job. That sets it apart from ready-mixed interior all-purpose cleaners like the Koch-Chemie MultiInteriorCleaner, which come at a fixed strength you can't change.

For a nicotine-stained headliner or greyed fabric seats you work at 1:5 to 1:10. Spray it on evenly, let it dwell for 1–3 minutes, then work it in with a soft detailing brush in circles. The Mzr lifts the dirt chemically, the brush pulls it out of the fibres. After that you extract the dissolved soil with a clean microfibre or a wet vac. On headliners the wet vac is non-negotiable — too much standing moisture softens the textile glue and the headliner starts to sag.

For everyday interior cleaning — dash, centre console, door cards — 1:20 to 1:50 is enough. At that strength the Mzr is gentle enough for most hard plastics. The surface comes out clean and there's no greasy film left behind.

Right after that you can lay down a plastic dressing — the Mzr leaves no residue that would block adhesion. That's what makes it the go-to prep step before any dressing. Still: on soft-touch steering wheels and rubberised grips even the weakest dilution is a gamble. Grab a pH-neutral cleaner for those.

Outside the cabin the Mzr earns its name too: workshop floors with oil stains, grimy industrial machines, weathered motorhome trim. For outdoor use go 1:5 to 1:10 and let it dwell 3–5 minutes. Hit it with a pressure washer or a brush, then rinse off.

One detail Koch-Chemie doesn't flag on the product page: the Mzr leaves a subtle, clean scent on the surfaces it cleans. Not an artificial air freshener — just noticeably less chemical than comparable industrial cleaners. In a smoker's car it won't mask the nicotine smell, but after the clean the cabin smells neutral instead of like cleaning chemicals. Sounds like a side-effect, but in the bay it matters when you're prepping cars for resale or hand-back.

Koch-Chemie Mzr lifts nicotine films. Leather, it attacks.

Organic dirt is the home turf of Koch-Chemie Mzr: greasy fingerprints, nicotine films, soot, ink stains and that typical grey ingrained look on light upholstery after two years of daily use. The alkaline formula handles those in one pass.

The colour shift from clean to dirty is instant on the Mzr — the microfibre after a wipe shows exactly what came out of the surface. Most dramatic on greyed light fabric seats: the first pass often pulls two shades of difference out. That's not a marketing line — it's the chemical effect of alkaline saponification breaking down the deep-set fat soiling that a neutral cleaner can't reach.

Koch-Chemie positions the Mzr as an interior all-purpose cleaner for cars, industry and building maintenance. The pack sizes tell you the same story: the 1-litre bottle sits next to 11 kg, 21 kg and 225 kg drums. This is a workshop cleaner that also works in the car interior. That origin is where the strength comes from — the Mzr is formulated for industrial grime, and that power follows it into the cabin.

Where the Mzr isn't the right tool: on genuine and synthetic leather with open-pore structure the alkalinity can dry out the surface and leave discolouration. Leather wants a pH-adjusted leather cleaner. On soft-touch plastics and rubberised surfaces like steering wheels or shift knobs it leaves dull patches. On painted or wrapped panels an alkaline cleaner has no business at all — even diluted 1:50, the pH still sits above 9. When you need an all-purpose cleaner with no risk for sensitive materials, the Koch-Chemie ASC is the safer pick — ready-mixed, pH-neutral, surface-agnostic.

One drum of Koch-Chemie Mzr. 200 litres of working solution.

The Koch-Chemie Mzr pays back on yield. One litre of concentrate at 1:20 dilution gives you 21 litres of ready-to-use cleaner — enough for 15–20 full interior cleans. At €7.67 a litre that works out to under €0.50 per car. If you detail regularly, grab the 11-kg drum: at €77.75 you're at €7.07 per kilo and around 200 litres of working solution at 1:20.

The Mzr is built for detailers, workshops and serious hobby detailers who want a concentrate over ready-mixed bottles. If you only clean the interior occasionally and don't want to mess with dilution, grab the MultiInteriorCleaner ready to use. If you want flexibility — stronger for a smoker's cabin, weaker for the weekly wipe-down — the Mzr is the cheaper bet.

For day-in, day-out workshop use we run a Koch-Chemie tap on the 11-kg drum: dose the concentrate into the bottle, top up with water, done. The 1-litre bottle is the one to keep for mobile work and the detailing kit. Store both frost-free between 5 and 30 °C; sealed concentrate keeps for 24 months. Use any diluted mix within four weeks.

One safety note to finish: the Mzr is classified as corrosive (H314) and carries the signal word "Danger". In the concentrate, always wear gloves and safety glasses. At normal working dilutions of 1:10 to 1:20 the risk drops a lot, but you still want to avoid prolonged skin contact. The safety data sheet is on the product page for download.

Bottom line: the Koch-Chemie Mzr isn't an everyday quick-wipe cleaner. It's a tool for jobs where you need to clean deep — smoker's cars, used-car prep, workshop floors, industrial machines. If those are your jobs and you're up for dilution and PPE, you get an interior all-purpose cleaner that comes in at under €0.50 per car — hard to beat at that price.

Application of Koch-Chemie Multi-Purpose Cleaner Mzr

From concentrate to clean surface in three steps

First, mix the dilution: fill water into the spray bottle, then add the Mzr concentrate. For stubborn dirt (nicotine, grease, soot) dilute 1:5 to 1:10. For regular cleaning of plastic and textiles, 1:20 to 1:50 is sufficient. For exterior cleaning of RVs, commercial vehicles, or workshop floors, use 1:5 to 1:10 and allow 3–5 minutes of dwell time.

Spray the solution evenly onto the dirty surface and let it sit for 1–3 minutes. For textiles and upholstery, work in circular motions with a soft brush – the Mzr loosens the dirt, and the mechanical motion removes it. For hard plastics, a microfiber cloth is sufficient. Afterward, wipe off any residue with a clean, damp cloth or, even better, vacuum with a wet vacuum cleaner.

For headliners, apply sparingly and never soak. The textile over the adhesive cannot tolerate standing moisture. Spray, brush briefly, and vacuum immediately. One pass is sufficient for slight discoloration. For nicotine deposits, it's better to do two passes rather than use a higher concentration – this protects the material and results in a more even finish.

Notes: Never use undiluted – pH 12.5 in the concentrate corrodes sensitive surfaces. Do not use on genuine leather, soft-touch plastics, rubberized handles, or painted surfaces. Avoid skin contact with the concentrate, wear protective gloves (H314: Causes severe skin burns). In case of contact with eyes, rinse immediately with water for 15 minutes. Store frost-free between 5 and 30 °C, use within 24 months after opening. Use diluted solution within 4 weeks.