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Owners of some Volkswagen TDI models are experiencing premature selective catalyst reduction (SCR) failures because of AdBlue heaters that, in some cases, aren’t lasting more than 50,000 miles.

According to a source who spoke to TTAC under the condition of anonymity, many Volkswagen TDI owners are arriving at dealerships after seeing check engine lights for failing AdBlue (diesel emissions fluid) heaters. Those heaters, explained the source, fail “based more on time than mileage” and cost over $1,000 to replace.



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Insult To Injury? VW Diesel Owners Saddled With Emission Repairs BEFORE Warranty Expiration

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