S70 L5-2.4L VIN 55 B5254S (1998)
Spark Plug: Technical Service Bulletins
Spark Plugs - New Improved
Section
2
Group
28
No.
0001
Year
98
Month
05
Vehicles involved: B52xxS engines
New improved spark plugs
Background:
A new spark plug with improved specifications was introduced into production during October 1997 for all 5 cylinder naturally aspirated engines.
The new sparkplug must be used when replacing spark plugs on all new and older 5 cylinder naturally aspirated engines.
Materials:
Spark plug kit
272372-4
Engine serial number delimitations:
B52x4S
1193278 -
B52x2S
1193464 -
Tightening torques and replacement intervals are the same as before.
Electrode gap cannot be adjusted.