Choosing the correct air suspension parts is crucial for long-term performance and safety. Whether you’re replacing a compressor, airbag, or valve block, this FAQ guide covers OE vs aftermarket, brand options, warranty questions, and when to replace. Ideal for Bentley, Porsche, Audi, BMW, and Range Rover owners.
1. Should I use OEM or aftermarket parts?
OEM is best if budget allows. Quality aftermarket brands like Arnott, WABCO, AMK are reliable too.
2. What is OE vs OEM vs aftermarket?
OE: made by the original factory. OEM: made by certified partner. Aftermarket: third-party non-certified.
3. How do I find the right part number?
Use your VIN and ask your mechanic or parts supplier for the exact match.
4. Can I mix OE and aftermarket?
Yes, but avoid mixing old/new struts in front or rear — always replace in pairs.
5. How do I know if it’s time to replace?
Sagging, compressor running often, uneven ride, or fault light are clear signs.
6. Should I replace 1 or all struts?
Replace in pairs (front or rear). All 4 only if over 7 years old or heavily used.
7. What is the best brand for compressors?
WABCO, AMK, and Arnott are top-tier options.
8. Is it worth buying used air suspension?
Not recommended. High risk of short lifespan or internal leaks.
9. What should I ask before buying?
Confirm part number, warranty, compatibility, return policy.
10. How long is a typical warranty?
1 year on most aftermarket units. OE parts may offer more if from dealer.
11. Where to buy trusted parts in UAE?
Mastershocks Dubai offers OE and certified aftermarket components.
12. What causes new compressors to fail fast?
Bad relay, unchecked air leaks, or reused clogged dryer.
13. What if I bought the wrong part?
If unused, many suppliers allow return or exchange. Check first before installation.
14. Is a rebuild kit good value?
Yes if done by a professional with proper seals and tools.
15. Can I install parts myself?
Possible for DIYers with tools and lift, but calibration must be done at workshop.
16. Does brand matter for valve block?
Yes. Poor brands leak fast. Stick to OE or trusted aftermarket.
17. Are Chinese air suspension parts safe?
Quality varies. Avoid unknown brands unless well-reviewed and tested.
18. How to tell if part is original?
Check markings, part number, build quality, and packaging. Ask supplier directly.
19. Is front airbag same as rear?
No. Different shape, pressure rating, and fitting size.
20. Why is new airbag not inflating?
Installation error, faulty valve, or improper calibration/reset.
21. Do I need to clear codes after replacement?
Yes. Always scan and reset faults to avoid limp mode or stuck height.
22. Can I reuse old ride height sensors?
Yes if they work, but recalibration is strongly recommended.
23. How do I choose correct compressor?
Match voltage (12V), air output rating, plug shape, and mounting style.
24. Is Arnott better than OEM?
Arnott often matches or exceeds OE specs with lifetime support in some cases.
25. Is ride quality the same with aftermarket?
Good brands provide same comfort. Cheap ones may ride rough or fail early.
26. How long should a new unit last?
5–8 years with clean filters, healthy seals, and no leaks.
27. What is the best air spring brand?
ContiTech, Dunlop, and Arnott are trusted across luxury brands.
28. Will aftermarket affect resale?
Only if visibly poor quality. High-end aftermarket with invoice is fine.
29. Do Mastershocks provide installation?
Yes, with 6-month or 1-year warranty depending on part.
30. Can bad part affect alignment?
Yes. Suspension height influences camber and toe angles.
31. Should I replace mounting hardware too?
If old or rusted, yes — bolts and fittings are safety-critical.
32. Do compressors fit multiple models?
Some do (BMW X5/X6 share units). Confirm part code to avoid mismatch.
33. Does warranty cover labor?
Only if installed at a certified shop like Mastershocks.
34. What to do if ride height is uneven after install?
Calibrate using diagnostic tool and check for air leaks.
35. Can I return faulty airbags?
Most suppliers require no scratches or damage. Keep all boxes and invoices.
36. What’s best time to replace in UAE?
Before summer. Heat worsens cracks and compressor overload.
37. Can used struts be repaired?
Some can be rebuilt, but seals must be properly installed with calibrated press.
38. How to prevent future damage?
Check filters, keep seals clean, avoid constant off-road height.
39. What’s a red flag on a cheap airbag?
Visible seam glue, poor welds, no branding, inconsistent rubber texture.