I have a 2005 Audi with cream beige leather interior - some wise guys at the garage put the winter tires on the back seats... Since then there are quite huge tire marks on the leather.

This stains is penetrated. The first attempt is to try out the Prep-7.7 as mentioned in the Dye and Ink Stain Removal System in this kit...

Roger Koh
[email protected]

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Leather Doctor® Kit-AP2

Auto pigmented leather care basic Kit-AP2 is designed for non-absorbent healthy pigmented leathers; primarily to take care of the leather finishes appearances through stain removal, cleaning and protection as highlighted. Additional structural care for softness, suppleness and strength especially to stitching seams, perforated panels and micro cracks finishes two additional leather rejuvenating products Hydrator-3.3 and Fatliquot-5.0 found in Kit-AP3.

■ Dye and Ink Stain Removal System - a leather-safe dye and ink stain removal breakthrough in the leather care industry
■ Restorative and Periodic Cleaning System - a leather-safe cleaning system that returns the leather to its neutral pH of 3 to 5/6 chemistry integrity
■ Leather Scent Non-Stick Rub Resistant Protector - a classic leather scent protector with options for a draggy or buttery tactile feel

Dye and Ink Stain Removal System
Remove stubborn stains through the penetrating, lubricating, and suspending power of Prep-7.7 to solve common problem stains found on pigmented leather seats like dye transfer from clothing including blue jeans and leather belts; not forgetting the newsprint and the tougher ballpoint ink.
Instructions
1 If the stain is a failed attempt from using other products, it’s recommended to use tap water for a wet finger test for tackiness or sliminess. If it is, acidifying it with Acidifier-2.0 found in Kit-AP3.P to return the leather to a squeaky feel is highly recommended prior to Prep-7.7 application.
2 Apply Prep-7.7 to the stain and let dwell for ½ to 1 hour until stain begins to run.
3 Blot the suspended stain and check if the leather color is removed at the same time, especially where the topcoat has already worn out prior to
application; protective matching satin or matte luster Topcoat-72 is recommended to further protect the colorcoat after Rinse-3.0, even though color may remain intact. Stain removal needs to be continued and completely removed; otherwise it will eventually wick up through the new finishes too.
4 Repeat application for older penetrated stains and allow for a longer 4 to 8 hours dwelling time to exhaust the stain, then repeat blotting and checking the stability of the leather finish until satisfactory.
5 Sticky residue is removed by Cleaner-3.8 with gentle brush agitation into creases and towel blot until towel shows clean.
6 This removal system completes with Rinse-3.0 spray and towel blot to a squeaky clean.

Restorative Cleaning System
This is the ultimate restorative or salvage cleaning system that removes accumulated soiling including the unwanted aged old conditioners to its original OEM finishes. Accumulated soiling that fills creases is often mistaken for cracks. This restorative cleaning is also achieved by the strength of the Prep-7.7 to effectively deflocculates those tough soiling with the help of the detailing horsehair Brush-1.
Instructions
1 It is recommended to use tap water for a wet finger test for tackiness or sliminess. If it is, acidifying it with Acidifier-2.0 found in Kit-AP3.P to return the leather to a squeaky feel is highly recommended prior to Prep-7.7 application.
2 Apply Prep-7.7 and agitate with horsehair Brush-1, to a panel at a time and let dwell for half to an hour to deflocculates tough soiling.
3 Towel extract the suspended stain and check if the leather color is removed at the same time, especially where the topcoat has already worn out
prior to application; protective matching satin or matte luster Topcoat-72 is recommended to further protect the colorcoat after Rinse-3.0,
even though color may remain intact. Stain removal needs to be continued; otherwise it will eventually wick up on the new finishes too.
4 Sticky residue is removed by Cleaner-3.8 with gentle brush agitation and extract until towel shows clean.
5 This restorative cleaning system ends with Rinse-3.0 spray and towel extract to a squeaky clean.

Periodic Cleaning System
Periodic cleaning is recommended before soiling causes damages to the finishing. This keeps leather consistently clean and healthy at all times.
Instructions
1 Spray Cleaner-3.8 and agitate with horsehair Brush-1, to 1 panel at a time.
2 Towel extracts the suspended soiling until towel shows clean.
3 This periodic cleaning system ends with Rinse-3.0 spray and towel extract to a squeaky clean.

Leather Scent Non-Stick Rub Resistant Protection
This non-stick rub resistant protector keeps leather at its high level of appearance at all times. It not only protects against the detrimental effect of sticky soiling, but also features rub-resistant protection that is incorporated to reduce surface friction wear, often caused by sliding in and out of auto seats. Thus prolonging the life of the finishes. This elusive, unforgettable, classic leather scent much sought after by leather lovers, is infused into this non-stick rub resistant Leather Scent-B protector.
Instructions
1 Shake well, mist spray Leather Scent-B; avoiding overspray, spread with foam brush and leave to dry.
2 For easy routine care mists spray and wipe with towel.

The contents of this kit include:

Leather Doctor® Prep-7.7 in 60ml.
This is a pH 7.7 aqueous high viscosity leather preparatory cleaner for pigmented leather types. It is developed to strip foreign soil accumulation to the original finish. It works by dwell-time of ½ / 4 / 8 / 24 hours intervals to exhaust especially stubborn dye and ink stains, allowing its’ superior penetrating, lubricating and suspending power to do the work. Successive dwell-time with towel blotting is followed through until the stain is exhausted. It has proven to work safely on: grease based ink stains like ballpoint ink; water based ink stains like stamp pad ink; dye transfer stains like blue jeans, leather, ink print and newsprint. It is highly recommended that the remaining sticky residue is thereafter removed in conjunction with Cleaner-3.8 and Rinse-3.0 as a holistic leather-safe system to a squeaky feel.

Leather Doctor® Cleaner-3.8 in 250ml.
This is a pH 3.8 all purpose leather-safe anionic cleaner that is particularly effective in emulsifying oily soils and in suspending its particulates. It works by penetrating, lubricating and suspending soiling safely and effectively through gentle chemical reaction; working in perfect harmony with all leather constituents that include the tanning agent, preservative, dyestuff and especially the fatliquor. It's safe for all leather trims including; aniline, vachetta, nubuck and suede. This product is always followed through with Rinse-3.0 as a system to a healthy squeaky feel.

Leather Doctor® Rinse-3.0 in 250ml.
This is a pH 3.0 aqueous leather-safe rinse to neutralize harmful alkaline and perspiration residues thus stabilizing and strengthening the leather to its pH value of 3 to 5/6 chemistry integrity. It's safe for all leather trims including; aniline, vachetta, nubuck and suede.

Leather Doctor® Leather Scent-B in 120ml.
This is a non-film forming, non-stick rub resistant protector that enhances a soft natural buttery-feel with an unforgettable classic leather scent. It’s for imparting a non-stick breathable barrier essentially to shield the detrimental effects of sticky soiling including the nasty ballpoint ink. It is effective to release those tenacious dye-transfers stains especially on light colored leathers easily, without resorting to unnecessary color refinishing. Its natural buttery-feel protection increases the leather resistance to wet and dry rubs, thus reduces stretch, scuff and abrasion. And it reduces friction squeaks that wear the finishes when leather is rubbed against during movement or the characteristically sliding in and out of the seat.

Horsehair Detailing Leather Brush-1
This horsehair detailing brush is ergonomically designed to be an extension of our hand with sturdy grooved grip, designed to produce an effective result easily and efficiently for many years to come. It’s recommended for all smooth leather, to deliver a scratch-free agitation cleaning. The length is 7 inches with a three row 1½ inches bristles cleaning head.

PolyBrush®
This is the 3” made in USA washable foam brush that last. It’s used for spreading the Prep-7.7, rinse clean and thereafter used for the leather Scent-B and Scent-D application to prevent overspray.

Washable Rags
This rag works like cloth, lint free and highly absorbent for extracting suspended soiling or for wiping the leather Scent-B and Scent-D during routine easy cleaning-protection application.

Refills are available...for more information email [email protected]