This study is an articulatory investigation of the coronal consonants in Malaysian Mandarin, with special reference to the non-＂canonical＂ realization of the sibilants. Our principal findings are: (i) d is apico-laminal dentialveolo-alveolar [t], (ii) s and sh are mostly laminal alveolar [s], and z, zh are the same as those of the corresponding fricatives, (iii) x has two phonetic variants: laminal alveolar [c] (＂canonical＂) and laminal (denti-)alveolar [c] (non-＂canonical＂, fronted), and (iv) j, as compared to z and zh, has a wider midsagittal contact, i.e., apical dentialveoloalveolar [tc]. Another important new finding is that the two variants of x are contextually conditioned. Specifically, the high front vowel [i] and the palatal glide [j] often co-occur with the non-＂canonical＂, fronted x (i.e., [c]), while the ＂canonical＂ [c] is found elsewhere. The phenomenon in question is attributable to language contactinduced sound change.