Skip to content
HARRYS EURO - NZ's Largest Online Performance Parts Store
HARRYS EURO – NZ's Largest Online Performance Parts Store

Pro-Line Intake System Cleaner Diesel | LIQUI MOLY

$74.99
Can't find the LIQUI MOLY part you need? We can source it for you. Email us.

Active solvent with highly effective additive combination. Eliminates contamination and deposits in the diesel intake and throttle valve area. Loosens and removes contamination such as oil, resin, soot, etc. Ensures the operability of all moving parts and increases the operational reliability of diesel engines.


For cleaning the intake manifold and intake valves. Recommended for preventive use during the inspection. Only suitable for use in diesel engines.


Application

Create access to the intake system. This should be positioned downstream of the air flow meter/turbocharger/charge air cooler, where possible directly in front of the intake manifold. Start the engine to begin cleaning.

If the engine cannot maintain the speed with the intake pipe removed or cannot be started, disconnect the plug from the air flow meter with the ignition switched off. In this case, the stored fault must be deleted from the engine control unit after cleaning using a suitable diagnostic device and the air flow meter must be taught in again if necessary.

Spray the Diesel Intake System Cleaner into the intake system via the spray probe in short intervals of 2–3 seconds at min. 2,000 revolutions. Move the probe back and forth in the process to clean the entire intake tract.

If a speed increase of more than 1,000 revolutions occurs during application, it is important to stop the spraying process immediately. Make sure that the Diesel Intake System Cleaner does not come into contact with the air flow meter or with painted components.

In the case of stubborn deposits in the intake manifold or on the intake valves, cleaning can be repeated with a second can. Do not remove the spray head from the can again after assembly. After use, allow the engine to run for about 20 seconds at min. 2,000 revolutions in order to burn any residues remaining in the intake system.


Other information

Do not remove the spray head from the can again after assembly.


SKU

Informations

Container type

Container contents

Language line

PU

Pallet unit

5168

Container type: Can aerosol

Container contents: 400 ml

Language line: DE-EN

PU: 6

Pallet unit: 780

: 1344

  • Unsure about fitment?
    Chat with our performance expert
  • NZ's largest Online performance parts store
  • All products backed by manufacturer warranty
  • 100% genuine parts
  • Hassle-free 30-day returns & refunds
  • Competitive pricing
    Seen a better price elsewhere? Let us check
  • Workshop installation available
  • Fast 1-3 days dispatch on in-stock items
  • Shipping from only $11.90
  • Click & collect available
  • Dealer-level MTA workshop
  • Expert tuning, upgrades, and servicing
  • Visit us: 15a parkway drive, Rosedale, Auckland
  • Open 6 days

Harrys Euro

150+ Brands · 30,000+ Performance Parts

Proudly Serving Kiwi Drivers for Over 9 Years
Store & Workshop
Workshop

Parts + services, under one roof

Shop performance parts in-store or online, then have them fitted and tuned by the same team. No referrals, no second trips.

Performance

Dealer-level workshop, MTA assured

Fully equipped to support late-model European vehicles — diagnostics, servicing, and performance builds done right.

Parts

Built for real-world performance

We fine-tune high-performance machines to suit how you actually drive.

Happy Customers

4.8
Based on 146 Google reviews
as of 01/05/2026
×

Follow Our Journey

Live build updates, event coverage, and behind-the-scenes — on Instagram.

Follow Us on Instagram ↗