Two problems related to engine exhaust system have been reported for the 1999 Volvo S70. The most recently reported issues are listed below.
My 1999 Volvo s-70 received software upgrade code #155 in 2006 subject to recall and in August 2009 started to experience random throttle surging and loss of power ,especially on highway driving conditions(I-95), making vehicle unsafe to operate,along with intermittent ets light coming on. I am now told by dealer that cause is due to failure of electronic throttle module & not covered by 10 year or 200,000 mile warranty as "in-service" date on my vehicle was Feb. 2009 and therefore past 10 year warranty period. Having researched your data base involving safety issues & accidents caused directly from this type of part failure, I am at a loss as to why a full recall has not been issued by Volvo to replace all etm's on these model vehicles. I am now out-of-pocket $1200. 00 for something that Volvo has neglected to fix. Statistically, it appears that more of these etm's will fail outside of the Volvo warranty period.
Emission system continued to fail. At stop vehicle would jerk forward. Engine check light would come on and remain. Sometimes vehicle would stall out when moving forward. Would be no warning. Been to dealer 8 times, and was test driven. Vehicle did not stall on mechanic. Owner , deputy sheriff video tape problem. Was repaired under fault codes, but problem still exists.