Are aftermarket drain bolts o r reused washers causing leaks in Changan Karvaan after oil changes by local workshops in Pakistan?

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Are aftermarket drain bolts o r reused washers causing leaks in Changan Karvaan after oil changes by local workshops in Pakistan?

Cheap o r reused parts may not seal properly. Are mechanics cutting corners during routine servicing?

Zarnish asked on 26 Jun 2025 16:26:03 pm

1 Answer

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Car Mechanic Expert - on 26 Jun 2025 16:30:39 pm

Yes, frequently:

Workshops often reuse crush washers, o r use low-quality Chinese drain plugs.

This results in:

Poor sealing

Slow leaks after service

Stripped threads from overtightening

⛔ Conclusion: Substandard replacement parts and unprofessional service methods lead to preventable transmission leaks.