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Car Mechanic Simulator 2021 Repair Bench Compendium

There are many parts available when wandering around barns and the junkyard that can be picked up for a bargain; but can those parts be repaired? Knowing what can or can’t be repaired can make the difference in picking up major parts and restoring them at a fraction of the store purchase price. Very useful when restoring that prize vehicle you’ve been working on.

Other Car Mechanic Simulator 2021 Guides:

This guide is primarily made up of two lists: parts that can be repaired and, secondly, parts that cannot be repaired. Knowing what parts are on what list can make the difference on whether you pick up something that has low condition that can be repaired or whether you leave it unless it is in good condition.

As in CMS2018, items have to have at least 15% condition before it can be repaired; so there is no value in picking up any part that is under 15% whether on the repairable list or not.

In order to repair parts you need to have unlocked the Renovator ability and have purchased the work bench once you have expanded the workshop. Each level of the Renovator ability opens up more repairable parts as all parts are levelled. To begin repairing body parts you need to reach level 6 of the Renovator ability and have purchased the body repair station.

Brake Discs and Batteries are not repaired at the Repair Bench but at the Brake Lathe and Battery Charger respectively which is purchased through the Workshop after the workshop has been expanded (Charger can be purchased before the garage expansion). Unlike the Repair Bench, it doesn’t cost any money to repair the brakes and recharge the batteries.

The higher the level of the Renovator ability, the greater the chance to repair the part completely. At level 6 the chance is 60%.

When repairing, the repair sweet spot (green bars) are best to be attempted when they are on the ends. This effectively doubles their size as the cursor runs through them and then returns back. If the placement of bars are not advantageous you can cancel the repair and try again.

These lists are not yet complete and will be updated as I come across the different parts. Exceptions are listed in brackets. If you come across any errors, please mention them in the comments.

If you have found this guide useful, please rate it so that others may come across it and benefit from it. Have fun with the game!

Parts that CAN be repaired


  • Air Filter Base; Air Filter Cover (only the basic, not the specific ones)
  • Bottom Fan Housing
  • Camshaft (except (V8 OHV F))
  • Carburetor
  • Clip A; Clip B
  • Crankshaft; Crankshaft Bearing Cap
  • Engine Block; Engine Head; Engine Head Cover
  • Exhaust Manifold
  • Front End Housing
  • Fuel Pump; Fuel Rail
  • Head Cover
  • Intake Manifold
  • Oil Pan
  • Power Steering
  • Radiator; Radiator Fan
  • Rod Cap
  • Round Air Filter Base; Round Air Filter Cover
  • Small Intercooler
  • Supercharger; Supercharger Intake Manifold
  • Thermostat
  • Throttle
  • Timing Cover
  • Turbo; Turbocharger
  • Water Pump


  • Bottom Suspension Arm
  • Coil Spring Rear Drive Axle
  • Front Axle Knuckle Cover
  • Front Drive Axle; Front Drive Shaft
  • Front Steering Knuckle; Front Wheel Hub
  • Front Suspension Crossmember
  • Leaf Spring; Leaf Spring Plate; Leaf Spring U-Bolt; Leaf Spring Rear Drive Axle
  • Lower Suspension Arm
  • Rear Axle Knuckle Cover; Rear Axle Knuckle Housing
  • Rear Drive Axle
  • Rear Suspension Arm
  • Rear Suspension Crossmember
  • Rear Suspension Upper Arm
  • Rear Wheel Hub
  • Solid Rear Drive Axle; Solid Axle Control Arm
  • Spring Cap
  • Steering Rack
  • Upper Suspension Arm
  • Wheel Hub


  • Brake Caliper; Brake Caliper Cylinder
  • Brake Disc; Brake Disc Ventilated (through the Brake lathe purchased in the workshop)
  • Brake Servo; Brake Shoe
  • Drum Brake Cylinder

No exhaust parts are repairable except Exhaust Manifolds which are listed under ENGINE.


  • Clutch Plate
  • Drive Shaft
  • Flywheel Cover
  • Front Drive Shaft
  • Gearbox


  • ABS Module; ABS Pump
  • Alternator
  • Battery (through the Battery charger purchased in the workshop)
  • Charger
  • EV Battery Module
  • Fuse Box Base; Fuse Box Cover
  • Ignition Coil B (other Ignition Coils are not repairable)
  • Ignition Distributor Cap; Ignition Distributor Rotor
  • Starter

All Rims are repairable

No Tires are repairable


  • Boot
  • Engine Cover
  • Front Bumper; Rear Bumper
  • Front Right Door; Front Left Door; Rear Right Door; Rear Left Door
  • Front Right Fender; Front Left Fender
  • Hood
  • Right Side Mirror; Left Side Mirror

No Number Plates are repairable

No Seats are repairable

No Steering Wheels are repairable

Parts that CANNOT be repaired


  • Air Filter; Air Filter Base; Air Filter Cover (Except for the basic Air Filter Base & Cover)
  • Arm
  • Belt Tensioner
  • Cam Gear
  • Camshaft (V8 OHV F) only – all other Camshafts are repairable
  • Camshaft Bearing; Camshaft Cap
  • Crankshaft Pulley
  • Fuel Filter
  • Fuel Tank
  • Idler Roller A; Idler Roller B
  • Oil Filter
  • Piston Rings; Piston with Conrod
  • Rocker Arm
  • Round Air Filter; Scoop Air Filter
  • Serpentine Belt; Supercharger Serpentine Belt
  • Supercharger Water Pump Pulley
  • Timing Belt; Timing Chain; Timing Chain Shoe
  • Valve Push Rod
  • Water Pump Pulley


  • Double Wishbone Shock Absorber; Double Wishbone Shock Absorber Rear
  • Front Shock Absorber; Front Shock Absorber Cap; Front Spring
  • Front Sway Bar
  • Rear Shock Absorber; Rear Shock Absorber Cap; Rear Spring
  • Rear Sway Bar
  • Rubber Bushing; Small Rubber Bushing
  • Sway Bar Front End Link; Sway Bar Rear End Link
  • Inner Tie Rod; Outer Tie Rod
  • Wheel Hub Bearing; Wheel Hub Cap


  • Brake Drum
  • Brake Pads


  • Catalytic Converter
  • Exhaust Pipe
  • Front Exhaust Pipe
  • Front Exhaust Section
  • Middle Muffler
  • Rear Muffler


  • Clutch Pressure Plate
  • Clutch Release Bearing
  • Final Drive Gear
  • Flywheel
  • Gearbox Input Shaft
  • Reduction Gear


  • Cables
  • ECU
  • Ignition Coil (except Ignition Coil B)
  • Ignition Distributor
  • Ignition Wires
  • Medium Fuse
  • Relay
  • Spark Plug

All Rims are repairable

All Tires are not repairable


  • Front Right Door Window; Front Left Door Window; Rear Right Door Window; Rear Left Door Window
  • Rear Right Side Window; Rear Left Side Window
  • Rear Window
  • Windsreen
  • Right Headlight; Left Headlight
  • Right Tail Light; Left Tail Light

All Licence Plates are not repairable

All Seats are not repairable

All Steering Wheels are not repairable

Postface & Log

Currently these lists represent the base game and current DLCs. Mods may have their own idiosyncrasies as mod authors may have used slots for unique modelled parts that may or may not be repairable. These items will generally be in the Body Parts section. I do use a lot of mods so I will add them as I come across them.

When I have tested and checked a greater number of the parts in the game and have filled out my speadsheet a lot more, I will look at adding a link to a Google Sheets file that contains all of the parts in the game and holds further useful information that can be downloaded.

16 Sept 21: Added items to Fixable list
12 Sept 21: Initial upload

Written by basil_oz

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