---
product_id: 5924076
title: "Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051"
brand: "liqui moly"
price: "€ 41.14"
currency: EUR
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.hr/products/5924076-liqui-moly-radiator-cleaner-300-ml-cooler-additive-sku-2051
store_origin: HR
region: Croatia
---

# stabilizes engine temperature 300 ml precision dose cleans entire cooling system Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051

**Brand:** liqui moly
**Price:** € 41.14
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your engine cool, clean, and cruising in style!

## Quick Answers

- **What is this?** Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051 by liqui moly
- **How much does it cost?** € 41.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/5924076-liqui-moly-radiator-cleaner-300-ml-cooler-additive-sku-2051)

## Best For

- liqui moly enthusiasts

## Why This Product

- Trusted liqui moly brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Deep System Flush:** Removes stubborn sediment for peak radiator performance
- • **Trusted Performance:** Top-rated with 4.6 stars and a loyal following among car enthusiasts
- • **DIY Friendly Formula:** Easy-to-use additive with clear instructions for hassle-free maintenance
- • **Enhanced Coolant Circulation:** Boosts flow to prevent overheating on long drives
- • **Single-Treatment Convenience:** Perfect 300 ml bottle for one complete cleaning cycle

## Overview

Liqui Moly Radiator Cleaner is a 300 ml cooler additive designed to flush out sediment and improve coolant circulation, ensuring stable engine temperatures and enhanced radiator efficiency. Trusted by DIYers and professionals alike, it offers a single-treatment solution with clear instructions, making radiator maintenance effortless and effective.

## Description

Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051

Review: Works very well - Flushed everything out of the cooling system in my Mustang. Great product.
Review: Easy cooling system flush that removes sediment and improves circulation - I added this Liqui Moly radiator cleaner during a coolant flush on an older vehicle. The additive mixes quickly, and after letting the engine run, I could see the old coolant draining out with noticeably more debris than a water flush alone. The bottle is the right size for a single treatment, and the instructions are clear. After flushing and refilling with fresh coolant, the engine temperature held more consistently, especially during longer drives. Minor note: it’s important to run the heater while circulating the cleaner so it reaches the full system — not really a con, just part of the process. For anyone doing DIY coolant maintenance, this helps get a more thorough clean.

## Features

- Single Quantity
- No Core Charge Req.
- Weight: 0.8lbs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CPL99N6 |
| Best Sellers Rank | #18,689 in Automotive ( See Top 100 in Automotive ) #9 in Cooling System Additives |
| Brand | Liqui Moly |
| Customer Reviews | 4.6 4.6 out of 5 stars (754) |
| Date First Available | May 9, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.8 ounces |
| Item model number | 2051 |
| Manufacturer | Liqui Moly |
| Manufacturer Part Number | 2051 |
| Model | Liqui Moly 2051 Radiator Cleaner - 300 ml |

## Product Details

- **Brand:** Liqui Moly
- **Item Volume:** 300 Milliliters
- **Item Weight:** 249 Grams
- **Number of Items:** 1
- **Unit Count:** 1.0 Count

## Images

![Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051 - Image 1](https://m.media-amazon.com/images/I/71+RpaQtNTL.jpg)

## Questions & Answers

**Q: do you have to flush after ? Or can you just leave in?**
A: You rinse the cooling system with water, flush it out, then refill

**Q: Can this be used with aluium rad**
A: Yes

**Q: how large a radiator does this product clean?**
A: It is based in total coolant volume. If your vehicle's coolant capacity is higher than the recommended maximum dilution quantity, you will need to purchase another.

**Q: Is this a 10 minute flush or does it stay in longer?**
A: Follow the instructions on the bottle. It is not recommended to drive with it in nor have multiple engine on/off cycles. Letting the car idle at least 10-15 minutes will not hurt the system, but do not be excessive.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works very well
*by R***H on January 31, 2026*

Flushed everything out of the cooling system in my Mustang. Great product.

### ⭐⭐⭐⭐⭐ Easy cooling system flush that removes sediment and improves circulation
*by M***E on November 16, 2025*

I added this Liqui Moly radiator cleaner during a coolant flush on an older vehicle. The additive mixes quickly, and after letting the engine run, I could see the old coolant draining out with noticeably more debris than a water flush alone. The bottle is the right size for a single treatment, and the instructions are clear. After flushing and refilling with fresh coolant, the engine temperature held more consistently, especially during longer drives. Minor note: it’s important to run the heater while circulating the cleaner so it reaches the full system — not really a con, just part of the process. For anyone doing DIY coolant maintenance, this helps get a more thorough clean.

### ⭐⭐⭐⭐⭐ This is working so good
*by G***L on December 1, 2025*

The Best Product

## Frequently Bought Together

- Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051
- Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037
- LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue

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**Shop now:** [https://www.desertcart.hr/products/5924076-liqui-moly-radiator-cleaner-300-ml-cooler-additive-sku-2051](https://www.desertcart.hr/products/5924076-liqui-moly-radiator-cleaner-300-ml-cooler-additive-sku-2051)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-07*