Tag: v70n

Volvo S80 2.4T Changing Spark Plugs (NGK K20TT 4604)

Fitted some fresh new plugs and decided to try NGK copper plug instead of Volvo OEM Iridium plugs. They work great and cost next to nothing. Decided to try NGK K20TT 4606. Double checked the gap to be sure, they are correctly preset for the Volvo S80 2.4 / 2.5T.

Still have to get used to swapping out 5 spark plugs instead of the “usual” 4.

Volvo S80 2.4T Changing Spark plugs

Volvo S80 2.4T Changing Spark plugs

Volvo S80 2.4T Changing Spark plugs




Volvo S80 2.4T Alarm Siren Module fix

As a lot of older Volvo’s, my S80 showed the cumbersome “Alarmservice needed” message. I decided to search for a fix instead of buying a new one, which costs about €280 – €300, which is a lot of money.

The process is very simple, slicing open the siren, disconnecting the battery pack and plugging in the new battery pack. The hard part is to remove the security bolt, I used a angle grinder and then tapping it out. I used a normal bolt when I mounted the siren again.

I bought it here: https://www.ebay.com/itm/152151139597

S60, S70, V70, S80 & XC Series
Type: Varta button cells
Rating: 7.2V, 320mAh
P/N: GP320BVH6A6, N2H280
Finish: Green wrapped
Connector: Mini-Volvo connector
Compatible with 8637399, 8622268, 9452709 & 9162941 siren modules
Cable length: 60mm

Volvo S80 2.4T Siren Module repair




Volvo S80 2.4T Do88.se Blue Silicone Intercooler Hoses

Replaced some old deteriorated intercooler hoses with new fresh Do88.se blue silicone hoses, which do not collapse anymore. I solved a hiccup when flooring the car from low rpm (due to sturdiness of the new hoses).

Volvo S80 2.4T DO88.se Intercooler hoses

Volvo S80 2.4T DO88.se Intercooler hose

Volvo S80 2.4T DO88.se Intercooler hose

Volvo S80 2.4T Old vs New Silicone hose

Volvo S80 2.4T Old Deteriorated Rubber hose

Volvo S80 2.4T DO88.se Silicone vs OEM Turbo hose

Volvo S80 2.4T Silicone Intercooler hose

Volvo S80 2.4T Silicone Intercooler hose

Volvo S80 2.4T Engine Bay




Volvo S80 2.4T Polybush Gearbox Mount

My front gearbox mount was shot. Found a polybush replacement part which is a easy swap. Remove 4x 18mm bolts, swap the part and tighten the 4x 18mm bolts. Noticed a big improvement in pickup and shift handling. The engine/gearbox is able to move much less, which helps in driveability.

Volvo S80 2.4T PU Gearbox mount

Volvo S80 2.4T New vs Old Gearbox mount

Volvo S80 2.4T New vs Old Gearbox mount

Volvo S80 2.4T PU Gearbox mount




Volvo S80 2.4T Fitting a new Compressor Bypass Valve (CBV)

I noticed some strange behaviour when lifting the throttle and decided to service the CBV aka Compressor Bypass Valve. I was right, car drives a lot better after replacing it with a fresh CBV / DV (Diverter Valve).

I went with an aftermarket TRITDT K5T09671.

Volvo S80 2.4T New TRITDT Compressor Bypass Valve (CBV) repair kit

Volvo S80 2.4T New TRITDT Compressor Bypass Valve (CBV) vs Old

Volvo S80 2.4T New TRITDT Compressor Bypass Valve (CBV) vs Old

Volvo S80 2.4T Fitting a new Compressor Bypass Valve (CBV)




Volvo S80 2.4T Trying Out An Open Cone Filter

I wanted to try an open filter, to hear the induction sound and the blowoff sound. I went with a big velocity stack type filter. Although it sounded nice, I already reverted it and went back to the original airbox.

Volvo S80 2.4T Fitting a Velocity Stack Open Cone Filter

Volvo S80 2.4T Fitting a Velocity Stack Open Cone Filter

Volvo S80 2.4T Fitting a Velocity Stack Open Cone Filter

Volvo S80 2.4T Fitting a Velocity Stack Open Cone Filter

And it looks like this again

Volvo S80 2.4T OEM Airbox




Volvo S80 2.4T Replacing Window Sliders

Easy mod with big results. If you have a Volvo with a choppy window, 9 out of 10, it will be the window sliders. They are quite easy to replace though. Tip: buy them on Aliexpress for cheap!

Volvo S80 2.4T Repairing Window Mechanism

Volvo S80 2.4T Repairing Window Mechanism

Volvo S80 2.4T Repairing Window Mechanism




Volvo S80 2.4T Replacing the Bosch O2 Lambda Sensor

Many people tend to forget that O2 aka Lambda sensors have a replacement interval (in my case 250.000km). Failing to do so will have direct impact on your power and mileage. I checked using Torque (Android app) and checking the Long Term Fuel Trims (LTFT). I noticed that they dropped after installing the new Bosch O2 sensor.

Partnr: 0 258 007 137 / 0258007137
LSU42, LS7137
EAN: 3165143196243

Volvo S80 2.4T Bosch O2 Precat Lambda Sensor

Volvo S80 2.4T Bosch O2 Precat Lambda Sensor

Volvo S80 2.4T Bosch O2 Precat Lambda Sensor




Volvo S80 2.4T Replacing vacuum lines with Silicone Hoses

A highly recommended repair / modification for all older Volvo owners. Replacing the old rubber vacuum lines with strong durable silicone hoses. I bought 3 color hoses (red / black/ blue) as the original hoses also have color stamps on them. Old rubber hoses deteriorate from heat and moisture and will fail over time. Replacing them with silicone hoses ensures a proper running car!

Volvo S80 2.4T Replacing Vacuum Lines