Goals from Sergio Aguero and Samir Nasri helped Manchester City concrete their place in a tip 4 of a Premier League though usually after they had been given a trepidation during a Etihad Stadium.
West Brom went forward with their initial conflict after 6 mins when Stephane Sessegnon dismissed a shot past a flat-footed Joe Hart in goal.
Sessegnon afterwards blotted his copybook when he fouled Aleksandar Kolarov and Aguero slotted home a 19th-minute penalty.
Nasri, creation his initial joining start given September, put City in front after 66 minutes, drumming in from tighten operation after Aguero’s bid was blocked.
West Brom had chances to equalize opposite a unsure home rearguard, customarily by Saido Berahino who missed a aim with a home counterclaim awaiting an offside flag.
City, in fourth, are 4 points transparent of fifth-placed Manchester United who revisit Tottenham Hotspur on Sunday.