Coilovers are a critical component of a vehicle’s handling and ride quality. Keeping them clean helps prevent corrosion, maintains performance, and extends service life. This guide provides a practical, step‑by‑step approach using common car care products and specialized tools. Readers will learn to address dirt, road grime, and grease without damaging seals or coatings.
Quick Answer
Disconnect any removable components, rinse gently with water, apply a car suspension degreaser, scrub with a nylon bristle coilover cleaning brush set, rinse again, and dry thoroughly with microfiber towels. Regular maintenance reduces buildup and protects finish without harsh scrubbing.
What You’ll Need
- nylon bristle coilover cleaning brush set
- car suspension degreaser spray 16 oz
- trigger spray bottle 32 oz for degreaser
- microfiber detailing towels 16×16 car cleaning
- soft wheel brush flexible car cleaning coilovers
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Before You Start
Prepare a clean, well-lit workspace and ensure the vehicle is safely supported. If the car is on a lift, double‑check stability before reaching under the body. Avoid powered washing directly on seals and joints to prevent water intrusion. Time estimate: 20–40 minutes for a single set of coilovers, depending on access. Wear eye protection and gloves to handle chemicals safely.
Step-By-Step: How To Clean Coilovers
- Park the vehicle on a flat surface and engage the parking brake. If possible, elevate the car to provide full access to the suspension area.
- Rinse the coilovers with a light stream of water to loosen loose dirt. Avoid high-pressure jets that can force water into seals.
- Spray a car suspension degreaser spray onto the coilovers, focusing on stubborn grime near thread areas and around the spring perches.
- Allow the degreaser to dwell for 1–2 minutes. Do not let it dry completely; reapply if needed.
- Using a nylon bristle coilover cleaning brush set, gently scrub the outer surfaces, paying attention to threads and base mounts. Use a soft wheel brush for tight curves and bushings.
- Rinse the coilovers again with a light water spray to remove all degreaser and loosened grime. Ensure water drains away from seals and bearings.
- Wipe down with microfiber detailing towels 16×16 to remove moisture and lift residual contaminants. Dry thoroughly to prevent water spots and corrosion.
- Inspect for any residual buildup or signs of corrosion. If needed, repeat the degreasing and brushing steps on particularly dirty areas.
- Lubricate exposed threads sparingly with a silicone‑based lubricant or as recommended by the manufacturer. Wipe away excess to avoid attracting dirt.
- Reinstall any removed components and test the suspension motion by lightly compressing the coilovers to ensure smooth operation before driving.
- Record the cleaning date and note any wear or damage to seals, springs, or adjusters for future maintenance planning.
- Dispose of used towels and wash tools with water and mild soap according to local regulations.
Troubleshooting
| Symptom | Likely Cause | Fix | Prevention |
|---|---|---|---|
| Excessive squeaking after cleaning | Residual moisture or insufficient lubrication | Re‑dry thoroughly and apply light lubricant to exposed threads | Dry fully after each cleaning; avoid over‑lubrication |
| Sticky adjuster or jammed spring perch | Debris lodged in threads | Carefully remove debris with a brush; recheck movement | Keep area clean and wipe after road exposure |
| Discoloration or rust spots | Water exposure, lack of protective coating | Treat with rust‑inhibiting product if applicable; consider repaint/retouch | Dry promptly; avoid standing moisture |
| Excess grime near seals after cleaning | Insufficient rinsing | Rinse again with gentle water and wipe dry | Rinse until visible cleanliness is achieved |
Common Mistakes
- Using high‑pressure water directly on seals or bearings
- Over‑soaking coilovers in degreaser or letting chemicals sit too long
- Scrubbing aggressively with stiff brushes that can scratch coatings
- Neglecting to dry completely, leading to corrosion
Tips For Best Results
- Work in sections to keep track of areas that need more attention
- Test a small area first if applying lubricants or protective coatings
- Choose a degreaser labeled safe for automotive suspensions
- Regular maintenance reduces buildup and simplifies future cleanings
Call A Professional
Consider contacting a professional if any of the following occur: visible leaks around seals, damaged coilover bodies, or corrosion that seems to compromise structural integrity. Do not operate the vehicle until a qualified technician confirms safety.
FAQ
Can I clean coilovers while they are mounted on the car?
Yes, but take care to avoid water intrusion into joints and ensure movement is unobstructed. Use a gentle spray and avoid soaking the area around seals.
What cleaning products should I avoid?
Avoid acidic cleaners, bleach, or abrasive brushes that can damage coatings and metal surfaces.
How often should coilovers be cleaned?
Clean every few months or after exposure to harsh road conditions and winter road salt for best longevity.
Is it safe to lubricate coilover threads after cleaning?
Yes, use a light lubricant recommended for metal threads and wipe away any excess to prevent dirt attraction.
Will cleaning affect ride quality?
Proper cleaning should not affect ride quality; it helps preserve function by preventing grime‑related stiffness or corrosion.
Should I remove coilovers for cleaning?
Not required for basic cleaning, but removing the assembly can allow more thorough access and inspection of seals and joints.
Buying Guide
When selecting products for coilover cleaning and maintenance, shoppers should consider size and accessibility of the suspension area, compatibility with surfaces, and the presence of protective coatings. Key buying factors include:
- Coilover size and design—Ensure brushes and tools can reach thread areas without bending or snagging on springs.
- Cleaning frequency—Higher road exposure or winter driving may require more frequent cleaning.
- Degreaser strength and safety—Choose a spray with clear usage instructions and automotive compatibility.
- Tool quality—Durable nylon brushes and flexible wheel brushes extend tool life and protect finishes.
- <bAbsorbent materials—Soft microfiber towels prevent scratching and provide fast drying.
- <bStorage and organization—A dedicated spray bottle and brush holder helps keeps gear ready.
While choosing, consider whether you want a complete kit or individual tools. A bundled kit often provides a balanced set of brushes, towels, and degreaser, streamlining maintenance. Are you aiming for routine upkeep or aggressive detailing after heavy use? Matching products to your driving conditions will yield the best results.