Best Flex B4 Swift 2025

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Last Updated - 26.07.2025

Best Choice

01

MATHY

MATHY - DropStop Gasket Additive (5 x 250 ml) - Oil Additive Stops Oil Loss in Engine, Transmission, Rear Axles & Power Steering - Regenerates Seals

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9.8

Exceptional

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Stops oil loss - By adding Mathy DropStop oil additive to the engine or transmission oil, leaking and age-brittle shaft seals / seals become soft and swell again.
Saves expensive repair costs - To achieve maximum effect, DropStop should remain in the oil for as long as possible. It can be mixed with all engine and transmission oils. Can be used at any time.
Quality from Germany - MATHY is a German premium manufacturer with over 80 years of experience in the development of additives and engine oils. The products are produced in Germany.
Perfect protection: intact seals are maintained by the oil additive. It is particularly suitable for preventive use on vehicles and machines older than 5 years.
Easy to use - The DropStop seal additive is simply added to the engine or transmission oil in a mixing ratio of 1:16. Not suitable for engines with timing belts running in the oil bath

122,55 €
02

MATHY

MATHY -BE Petrol System Cleaner (5 x 250 ml) - Certified Petrol Cleaner - Petrol Additive - Highly Effective Valve Cleaner - Petrol Additive

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9.7

Exceptional

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Saves repair costs - Mathy-be petrol cleaner extends the life of catalytic converters through optimal combustion and optimises fuel consumption. For longer engine life.
Quality from Germany - MATHY is a German premium manufacturer with over 80 years of experience in the development of additives and engine oils. The products are produced in Germany.
Permanent system care - Regular use (approx. every 3,000 km) of the petrol cleaner removes dirt in the petrol fuel system and cleans combustion chamber, valves and piston bottoms.
Easy to use without workshop visit - The can Mathy-be petrol system cleaner is filled directly into the tank before refueling. The petrol additive is compatible with all petrol engines.
Certified effectiveness - Mathy-be petrol additive is tested annually for effectiveness. The reduction in NO emission is tested in an extensive test of the system cleaner.

72,55 €
03

Liqui Moly

LIQUI MOLY Brake Fluid DOT 4 | 500 ml | Brake Fluid | Item No.: 21156

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9.6

Exceptional

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Specifications/approvals: FMVSS 116 DOT 3/116 DOT 4 | ISO 4925 Class 3/4925 Class 4 | SAE J 1703/J 1704
Mixable and compatible with high-quality synthetic brake fluids
Highest thermal stability
Good viscosity temperature behaviour
Extremely high wet and dry boiling point
Excellent protection against vapour bubbles
Excellent low temperature behaviour
Excellent Elastormer compatibility
Ensures high lubricity of all moving components in the hydraulic brake circuit

5,99 €
Value for Money

04

Hella

HELLA 3AL 922 000-951 Signal Horn - S90 - 12V - 113dB(A) - Frequency Range: 350Hz - Low Tone - Housing Colour: Red/Black - Flat Plug-in Connector

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9.4

Excellent

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Type of protection (IP code): X7, X9K, X4K.
Rated voltage (V): 12.
Installation type: Flat connector.
Diameter (mm): 90:
Certification mark: E4.

10,41 €
05

MATHY

MATHY - IB Injector Cleaner Petrol (3 x 200 ml) - Highly Effective Petrol Additive for Cleaning the Injectors in the Petrol Engine - Injector Cleaner

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9.3

Excellent

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Main highlights

Saves expensive repairs - The Mathy-IB petrol injector cleaning prevents expensive replacement of the injectors. The engine running is optimised and the engine life is extended.
Quality from Germany - MATHY is a German premium manufacturer with over 80 years of experience in the development of additives and engine oils. The products are produced in Germany.
Emission values are optimised – thanks to regular use (approx. every 10,000 km) of the petrol additive, keep the injectors clean and improve the exhaust gas values during the exhaust gas test (AU).
Effective injector cleaning - The injector cleaner dissolves paint-like impurities at the injector tips, the spray pattern is optimised and fuel consumption optimised.
Easy to use without workshop visit - With Mathy-IB petrol additive, you can clean your injectors yourself. Fill the can of injector cleaner into the almost empty tank before refueling.

52,55 €
06

PETEC

PETEC Multi Active Primer Combination Stick 10 ml 82410

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9.2

Excellent

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For adhesion on windows with and without ceramic screen printing coating with excellent UV protection
For activating PU-RIM and PVC coatings
Easy to apply thanks to screw-on applicator
Bonding agent and UV protection of adhesives and sealants based on PU

12,18 €
07

JNNJ

JNNJ Carburettor Cleaner Set, Carburettor Carbon Dirt Jet Cleaner, Carburettor Cleaner Cleaning Set, Carburettor Cleaning Tool Kits for Car Mechanics Nozzle

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9.1

Excellent

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【Universal Use】The brushes and needles can be used to clean small holes in nozzles, air tools, camping stoves and much more. They are also suitable for all automotive motorcycles, ATVs, welding machines, tattoo equipment, lawn equipment, snow blowers and many other power sport carburetors.
【Size】: The cleaning tool set consists of cleaning needles and brushes with 5 different diameters of stainless steel nylon bristle wires of 3 mm, 4 mm, 5 mm, 6 mm and 7 mm in lengths of 30 mm and a total length of 110 mm. For cleaning small and narrow holes of different sizes on the machine.
【High Quality】: Nylon spiral bristles with different diameters are very easy to clean, flexible 304 stainless steel handle will not deform, stainless steel needles of different diameters can easily penetrate the inside, easily and thoroughly remove the dirt from the curved corners.
【Function】: This cleaning tool kit is perfect for removing dirt or impurities from the tightest passages of your car's carburetor (such as small nozzles and passages), its spiral bristles are designed for easy access and thorough cleaning of dirt, and they can be reused multiple times.
Package includes: cleaning kit includes plastic handle single head brush, black nylon tube brush, yellow nylon tube brush, mini brush, black nylon surface brush, needle, a variety of sizes and a variety of functions to meet your different needs to solve most problems of clogging the gun.

11,99 €
08

CGEAMDY

Car Belt Protector, 2 Pieces, Soft and Comfortable Cushion for Seat Belts, Compatible with All Cars, Seat Belt Protection for Adults and Children (Black)

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8.9

Very Good

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Universal fit – suitable for all cars, can also be used on your backpack, lugguage and anything that has a shoulder strap. If you are not sure about the size, please contact us for further support.
RISK FREE PURCHASE - Your satisfaction is our top priority, we offer an unconditional return service, so you can shop with a clear conscience. Please let us know if you have any concerns or problems with our products, our customer service is always there for you to make you satisfied!
Product features: our shoulder rest is soft and comfortable, it adopts a high-quality cotton blend and a velour surface that does not cause irritating odours. It relieves your shoulders and offers you a better driving experience. Thanks to the use of premium material, you will feel cool in summer and warm in winter.
Easy to use – very convenient to install in one minute. It has two durable Velcro fasteners, open the Velcro fasteners, then open the shoulder pad, place the seat belt in the middle of the shoulder pad, stick the Velcro fasteners together, installation complete. And easy to adjust, also, the pad of the belt is removable and washable.
Decoration and protection: If the interior of your car is too simple for you and you want to add a practical decoration, our seat belt cover is a suitable choice for you. It not only keeps the seat belts clean, but also protects your neck from injury during emergency braking and prevents your beautiful clothes from being worn out even more due to the friction between you and the seat belt.

7,99 €
09

Flaconi

Flaconi Sunroof Cleaning Brush, Car Sunroof Drain Cleaning Brush, 118 Inch Car Drain Hole Cleaner, Flexible Drain Brush, Long Pipe Cleaner for Car, Sunroof, Windscreen Wiper, Drain Hole

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8.6

Very Good

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[Practical Hand Ring Design] The other end of this hose brush is a hand ring designed for easy removal. The ring design prevents peeling and makes it easier to expand and clean. You don't have to worry about the pipe cleaning brush falling into the hose and cannot be taken out, which makes holding and switching on more convenient.
[Multi-purpose] The sunroof drain cleaning tool can be used to clean drain pipes of car sunroofs, door drain holes, fuel tank drain holes, refrigerator drain pipes, aquariums, filter systems, decorative parts, glass hoses/pipes and water pump accessories, etc.
[High-quality materials] One end of this pipe cleaning brush is a pipe brush, which is carefully made of rotating nylon bristles, soft and very durable, which can gently brush away the sediment without damaging or scratching the soft rubber skylight hose, and which can be reused for a long time.
[Function] The flexible drain brush is suitable for passing through small pipes and helps you gently remove leaves, dirt, cobwebs and debris, and you can easily clean tight gaps and connection points.
Flexible and long enough: This long pipe cleaner has a total length of 78 inches (200 cm), which is long enough to clean narrow pipes that normal cleaning brushes cannot reach. And it is flexible enough to work even with curved pipes.

5,49 €
10

JNNJ

JNNJ Pack of 2 Fuel Line Quick Coupling, Male Straight Fuel Hose with Quick Release, Car Fuel Line Hose Pipe Coupling (ID8)

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8.5

Good

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Main highlights

【Size type】: there are two types of kits to choose from: 7.89 size quick couplings to 6mm ID nylon hoses plus male couplings to 7.89 and 9.89 size quick couplings to 8mm ID nylon hoses plus male couplings to fit 9.89, which are compatible with fuels or gases.
【Quick Coupling】: Designed for easy installation and removal, the adapter quickly connects and disconnects fuel lines by pushing and pulling while pressing the lock button. The barbed ends are connected to the fuel line. The expansion clip buttons on each end can be easily removed by snapping into place.
【High quality】: fuel couplings are made of high-quality nylon material, with good corrosion resistance, not easy to break and age, high and low temperature resistance, working temperature range -40°C(-40°F) to 120°C(248°F), can be used for a long time.
Widely used: This fuel line quick coupling has a wide range of liquid media and applications and can be used in petrol and diesel fuel delivery systems or methanol, ethanol, natural gas delivery systems or their steam emission or volatile escape control systems.
High performance: the maximum working pressure of the quick couplings is up to 500kPa, 5bar, (72psig), the working vacuum of the quick couplings is as low as -50kPa, -55bar, (72psig), the working temperature range of the quick couplings is from -40°C (-40°F) to 120°C (248°F).

9,99 €