Volvo Parts Catalog Volvo Accessories Catalog Volvo Technical Articles Volvo Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Catalytic Converter Replacement
 
Bookmark and Share

Pelican Technical Article:

Catalytic Converter Replacement

Jared Fenton

Time:

2 hours2 hrs

Tab:

$1500

Talent:

*****

Tools:

13mm/22mm wrench, offset oxygen sensor removal tool, penetrant

Applicable Models:

Volvo C30 (2007-13)

Parts Required:

Catalytic converter, gasket, hangers

Hot Tip:

Soak all fasteners in penetrant spray for a few days beforehand

Performance Gain:

Cleaner running engine

Complementary Modification:

Replace oxygen sensors

The catalytic converter is a major part of the emissions system on your car. It works by changing harmful exhaust gases into more environmentally friendly by products. Inside the converter is a series of baffles made of platinum, palladium and other rare metals. When the exhaust gases hit the baffles, there is a chemical reaction and the gases are converted.

Over time, catalytic converters can become saturated due to incorrect fuel mixtures. The elements inside the converter can also be damaged and break from impact. A saturated or blocked catalytic converter typically emits a sulphur-like smell from the exhaust. There may also be a loss of power under load. In these cases, the converter must be replaced. In this article, I'll go over the steps involved with replacing the converter on your Volvo C30.

Accessing the catalytic converter requires going underneath the car. You'll need to jack the car up at both ends and secure it on jackstands. See our article on Jacking up Your C30 for more information.

Shown here is the location of the pre-catalyst oxygen sensor on the Volvo C30 (green arrow).
Figure 1

Shown here is the location of the pre-catalyst oxygen sensor on the Volvo C30 (green arrow). You'll need to access this from under the engine. Use a 22mm wrench to loosen and remove the sensor from the exhaust. It also helps to spray the sensor with a penetrant spray beforehand to help with rusty exhaust systems.

The other oxygen sensor is mounted in the side of the catalytic converter.
Figure 2

The other oxygen sensor is mounted in the side of the catalytic converter. You'll need to use a special offset socket to remove the sensor (green arrow). As before, it is very helpful to spray the sensor with penetrant oil beforehand. Once the sensor is loose, pull the wiring harness out of the securing clip (yellow arrow).

Shown here is the special offset socket needed to remove the sensor with a regular 3/8 drive ratchet.
Figure 3

Shown here is the special offset socket needed to remove the sensor with a regular 3/8" drive ratchet. The part number is: PEL-4491B.

Loosen and remove the three 10mm bolts holding the front of the catalytic converter to the turbocharger assembly.
Figure 4

Loosen and remove the three 10mm bolts holding the front of the catalytic converter to the turbocharger assembly. Be sure to replace the sealing gasket underneath when fitting the new converter.

Move underneath the center of the car to the rear of the catalytic converter.
Figure 5

Move underneath the center of the car to the rear of the catalytic converter. Loosen and remove the 13mm bolt (green arrow) holding the retainer bracket to the frame. Slide the rubber hanger (yellow arrow) off the catalytic converter and transfer it to the new one if you are re-using it. A bit of silicone spray on the hangers makes it much easier to slide them in place.

Loosen and remove the two 13mm nuts (green arrows) holding the rear of the catalytic converter to the exhaust pipe.
Figure 6

Loosen and remove the two 13mm nuts (green arrows) holding the rear of the catalytic converter to the exhaust pipe. I highly suggest soaking these nuts in penetrant oil for a few days before replacing the converter. It's very easy to snap these bolts due to rust and corrosion. A few heat cycles along with penetrant spray can work wonders with stuck fasteners. Once the nuts are removed, separate the exhaust pipe from the converter. Be sure to replace the sealing gasket between.

The last step is to slide the rubber hangers (green arrows) off the mounting brackets welded to the catalytic converter.
Figure 7

The last step is to slide the rubber hangers (green arrows) off the mounting brackets welded to the catalytic converter. Replace the hangers if needed. Now carefully maneuver the converter up and over the crossmember (yellow arrow) and out from under the car. Installing the new converter is the reverse of removal.


Bookmark and Share

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Fri 12/9/2016 03:02:54 AM