SONAX PROFILINE InnenReiniger Interior Cleaner 10l

Interior cleaning at volume — SONAX PROFILINE InnenReiniger as a concentrate for pros

What sets the interior cleaner from the SONAX PROFILINE range apart? This high-performance interior-cleaner concentrate for fabric, plastic and leather cleans car interiors effectively and economically — in 10-litre and 200-litre containers for high-throughput pro shops.

Interior cleaning eats time and material, and it's one of the core jobs in any professional detailing shop. If you're cleaning several interiors a day, you need a product that just works, doses economically and can be kept on hand in real quantity. The SONAX PROFILINE InnenReiniger is built as a concentrate — for economical bulk use in the bay — and comes in 10 litres for mid-size shops and a 200-litre drum for big operations and car-wash sites with steady, ongoing demand.

• Concentrate for flexible dosing and high yield. Being a concentrate, you dilute it to whatever strength the dirt calls for. Lightly soiled surfaces get a weaker mix; heavily soiled fabric or dried-on residue needs a stronger one. That flexibility brings your cost per job down and lets you run the same product across very different cleaning intensities.
• Works across fabric, plastic and leather. A car interior is a mix of materials — fabric seats, hard plastic trim, leather or faux leather, carpets and the headliner. The InnenReiniger handles the lot, so you're not swapping cleaners every time the surface changes. That simplifies the workflow a lot and cuts how many specialist products you have to stock.
• Economical bulk sizes for high throughput. The 10-litre canister and the 200-litre drum are built for nonstop pro use. Compared with small bottles the price per litre drops sharply, and over a day's worth of cars that lands straight in your margin. The 200-litre drum suits shops running fixed dosing systems.

Detailing1's tip from the shop: For everyday routine interior cleaning, dilute the InnenReiniger 1:10 with water. For stubborn marks on fabric seats or heavily soiled floor mats you can take it up to 1:5 or run it neat. Lay the diluted product down with a microfibre cloth, a soft brush or an applicator sponge — don't let it dry on the surface; wipe it off right after the dwell time or take it off with a damp cloth. On leather, always follow the clean with a proper leather conditioner, since cleaners pull the natural oils out of the hide.

InnenReiniger as a concentrate — how it works, what's in it and dilution guidance

The SONAX PROFILINE InnenReiniger is formulated as a surfactant-based concentrate — surfactants are molecules that bridge water and grease, wrap around dirt particles and lift them off the surface as you wipe. That base tech is well established in car-interior cleaning, because interior grime is a mix of body oils, dust, food residue and fabric particles — all things tensid-based cleaners pull apart reliably.

The concentrate format has a few clear edges over ready-to-use sprays: transport cost and storage volume per unit are lower, since a big chunk of a ready-to-use product is water you can add cheaper on site. In a pro shop burning through many litres a day, that edge adds up to real savings over the year.

The recommended dilution ratios for the InnenReiniger depend on the job. As a rough guide: for routine cleaning of lightly soiled surfaces (dashboard, door cards, cubbies) go 1:10 to 1:15. For medium soiling (seats, floor mats after normal use) 1:5 to 1:8 works. For heavy soiling — fabric seats with food or drink stains, ground-in dirt — you can set the concentrate to 1:2 to 1:3 or work it in neat with a brush.

The concentrate is also tuned to leave no residue on surfaces once you've wiped it off — nothing that spoils the finish. A common gripe with cheaper interior cleaners is streaking on smooth plastic: the product dries unevenly and leaves streaks that only show up in direct light. This one is built to work clean, which cuts down how much rework the treated panels need.

One key note for leather: surfactants don't just lift dirt, they strip the conditioning oils out of the hide too. So regular cleaning of leather seats with the InnenReiniger should always go hand in hand with a follow-up using a leather-care product compatible with the SONAX PROFILINE LeatherCleaner, to put the nutrients back and keep the material supple.

Using the InnenReiniger properly — workflow for fabric, plastic and tough stains

For a full interior clean the workflow starts with pulling out all the loose stuff and vacuuming the cabin thoroughly. Dust and dry dirt you don't remove before going wet turns into a mud with the cleaner, which makes the job harder and loads up your cloth fast. Only once it's vacuumed does the InnenReiniger come into play.

On hard plastic surfaces — dashboard, centre console, door cards — apply the diluted solution with a damp microfibre cloth and work it in with circular motions. The cloth should be damp, not wet; too much moisture can creep into gaps and seams and cause staining. After a dwell time of 30–60 seconds, lift the dirt with a clean, dry microfibre cloth.

For fabric seats and carpets, spray the diluted solution on and then work it in with a medium cleaning brush. Brush in the direction of the fibres to avoid roughing them up. On heavy stains you can go over the area several times; between passes let the surface dry off briefly so the moisture doesn't soak into the seat foam. A wet vac after the last pass pulls up the loosened grime and excess liquid and cuts the drying time right down.

For machine fabric cleaning — with a steam cleaner or an extraction machine — the diluted InnenReiniger can go into the machine's tank as the cleaning agent. Being compatible with extraction machines makes it an economical alternative to pricey specialist products for hot-steam interior cleaning. When you run it in an extraction machine, pick a slightly higher dilution than for manual application to avoid too much foaming inside the unit. If in doubt, check with the machine maker about the maximum concentrations recommended for the cleaning solution — some extraction machines aren't built for very high-foam products and could be damaged.

The SONAX PROFILINE InnenraumSchwamm "Duo" works as an applicator for cleaning smooth plastic and leather surfaces — its two different sides let you both clean and lay down care products after cleaning with the same tool.

Where the InnenReiniger earns its keep — areas of use

The product is built for shops cleaning a lot of cars a day. Detailing shops, rental fleets, fleet managers, dealerships and reconditioners prepping used cars for resale are the typical users. For these shops it's not just cleaning power that counts but the economics too — the InnenReiniger as a concentrate in the 10- or 200-litre size pushes the material cost per car down to a minimum.

For used-car reconditioning the InnenReiniger is especially relevant: a used interior shows the usual wear patterns after years of daily use — greasy build-up on the wheel and armrests, ground-in dirt in the seats, dust in the vents and lint on the carpet. A thorough pass with the InnenReiniger — from the headliner down to the floor mats — lifts the perceived value of the car a lot and is decisive for the dealer sale.

Fleet operators and rental firms running regular interior cleans across their fleet get the most out of the 200-litre drum. With a fixed dosing system — a wall pump or an automatic mixing rig — the InnenReiniger can be dosed straight at ratio into the spray bottle or container, with no manual decanting. That infrastructure pays for itself fast at high car throughput.

Headliners are among the trickiest spots in interior cleaning. The fabric is delicate, can't get too wet (the soaked adhesive can warp it) and shouldn't be worked too hard with a brush. For the headliner, go for a higher dilution of the InnenReiniger (1:15 to 1:20) and apply it with a lightly damp microfibre cloth in gentle, linear strokes. No scrubbing — the dirt comes off through the surfactant action, not through mechanical abrasion. That gentle approach keeps the headliner in good shape over many cleans.

For shops that offer specialist cleaning on top of standard interior work — leather cleaning, mould removal, odour neutralisation — the InnenReiniger is the base cleaner, the first stage. The SONAX PROFILINE SensitiveSurface Detailer handles the fine care of delicate surfaces after the base clean with the InnenReiniger, and the SONAX PROFILINE Interior Detailer Concentrate rounds it off as a care product that conditions surfaces after cleaning.

The InnenReiniger compared — concentrate vs ready-to-use, InnenReiniger vs specialist cleaner

On the market there are two basic approaches to car-interior cleaning: ready-to-use sprays and concentrates. Ready-to-use products are good to go and need no dosing — they suit occasional use or staff with no experience of dilution ratios. Concentrates cost more per litre but, once diluted, come out much cheaper per job. In a high-volume pro shop the concentrate pays off against ready-to-use alternatives within just a few weeks of running.

Comparing it with specialist cleaners — dedicated leather cleaner, fabric cleaner, plastic cleaner — shows the strength of the all-rounder InnenReiniger: one product for every surface simplifies your stockroom, cuts the number of products and streamlines the workflow. That said, if you're cleaning very delicate leather (Nappa, natural hide) or special fabrics (Alcantara, velour), look at the more specific products in the SONAX PROFILINE range, which are tuned for those materials.

On bang for the buck the concentrate is clearly the smartest format for a pro shop. Ready-to-use interior cleaners in 500 ml or 1-litre bottles cost several times more per job than the equivalent mixed from concentrate. Once you put the cost per cleaned car of the InnenReiniger concentrate up against a branded spray, the savings jump out at you straight away — and you see why professional shops stick to concentrates without fail.

Buying SONAX PROFILINE InnenReiniger — container sizes and what to pick for your shop

Odour problems inside the car — a common customer job — aren't fully solved by the InnenReiniger alone, but they're cut down a lot. Smells come from mould, dried organic residue and particles bedded into the fabric layers. The InnenReiniger removes the organic base of the smell through its cleaning action; for stubborn odours, follow the base clean with a dedicated odour neutraliser. Pairing a thorough mechanical clean using the InnenReiniger with a follow-up odour neutralisation is the most effective system for cars with bad smell problems.

The choice between the 10-litre canister and the 200-litre drum comes down to your shop's daily use. For a detailing shop doing a full interior on 3–5 cars a day, the 10-litre size lasts several weeks. Bigger operations with 10 or more cars a day — rentals, dealerships or car-wash sites — benefit from the 200-litre drum, which pushes the material cost per job down further and means fewer reorders.

The InnenReiniger slots seamlessly into the PROFILINE system workflow: pre-clean with MultiClean "Alkaline" for the exterior wash, InnenReiniger for the interior, SensitiveSurface Detailer or Interior Detailer for the care finish — a matched system from one brand that makes professional results reliably repeatable, and one whose completeness cuts your need for other makers' products in day-to-day reconditioning down to a minimum.

Picking the right dilution ratio becomes second nature with a little experience. Shops new to the concentrate can start with a standard 1:10 ratio and tweak it to 1:7 or 1:5 if the result falls short. It's worth keeping a small log of the dilutions you use for different car and soiling types — after a few weeks the shop has a reliable standard that saves time and locks in consistent results. If you work with several staff, you can write this log up as an internal work instruction, so everyone runs the same dilutions and application parameters — a decisive step toward quality control in a growing shop.

For shops just stepping into the PROFILINE range, the InnenReiniger is a solid way in: it's versatile, easy to use and covers the most important part of the reconditioning business. Choosing the concentrate over ready-to-use products is a clear sign the shop works professionally and cost-efficiently — a mark of quality that shows in the price and in how you talk to customers. If you can tell your customer you work with a professional SONAX PROFILINE concentrate, mixed to order, you're signalling experience and method — and you stand out clearly from shops working off supermarket sprays from a can. That transparency builds trust and justifies professional prices for the interior-cleaning job.