Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Suspension Codes Explained





Clarification of weight Production Relevant numbers (PR No.)
For improved alignment, spring / suspension strut allocation is divided into weight Production Relevant numbers.
The type of spring/suspension strut combination installed in vehicle is documented on the vehicle data plate through the corresponding PR No.

Example of a vehicle data plate





- PR No. for front axle is at location - A -
- PR No. for rear axle is at location - B -

Vehicle data plate is located in spare tire well and in service schedule.
Using the PR No., locate the appropriate spring/suspension strut combination.