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  <xs:element name="ContractWithCustomerLiabilityCustomerCoreReturnsAccrualCurrent" id="mpaa_ContractWithCustomerLiabilityCustomerCoreReturnsAccrualCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ContractWithCustomerLiabilityCustomerAllowancesEarnedCurrent" id="mpaa_ContractWithCustomerLiabilityCustomerAllowancesEarnedCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ContractWithCustomerLiabilityAccruedCorePaymentCurrent" id="mpaa_ContractWithCustomerLiabilityAccruedCorePaymentCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="IncreaseDecreaseInLong-TermCoreInventory" id="mpaa_IncreaseDecreaseInLong-TermCoreInventory" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="InventoryCurrentAndNoncurrentTable" id="mpaa_InventoryCurrentAndNoncurrentTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InventoryCurrentAndNoncurrentLineItems" id="mpaa_InventoryCurrentAndNoncurrentLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LongtermCoreInventoryAbstract" id="mpaa_LongtermCoreInventoryAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LongtermCoreInventoryDeposit" id="mpaa_LongtermCoreInventoryDeposit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="InventoryValuationReservesLongTermCore" id="mpaa_InventoryValuationReservesLongTermCore" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="LongTermCoreInventoryNet" id="mpaa_LongTermCoreInventoryNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="RemanufacturedCoresHeldInFinishedGoods" id="mpaa_RemanufacturedCoresHeldInFinishedGoods" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="UsedCoresHeldAtFacilities" id="mpaa_UsedCoresHeldAtFacilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="UsedCoresExpectedToBeReturnedByCustomers" id="mpaa_UsedCoresExpectedToBeReturnedByCustomers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="LongTermCoreInventoryGross" id="mpaa_LongTermCoreInventoryGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="RemanufacturedCoresHeldAtCustomersLocations" id="mpaa_RemanufacturedCoresHeldAtCustomersLocations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="ImpactOfAdoptionOfNewRevenueRecognitionStandardOnInventoryTextBlock" id="mpaa_ImpactOfAdoptionOfNewRevenueRecognitionStandardOnInventoryTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="CustomerBMember" id="mpaa_CustomerBMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CustomerCMember" id="mpaa_CustomerCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RotatingElectricalProductsMember" id="mpaa_RotatingElectricalProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OtherProductsMember" id="mpaa_OtherProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BrakeMasterCylindersProductsMember" id="mpaa_BrakeMasterCylindersProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WheelHubProductsMember" id="mpaa_WheelHubProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ConcentrationRiskPercentageAbstract" id="mpaa_ConcentrationRiskPercentageAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CustomerAMember" id="mpaa_CustomerAMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ParentCompanyCreditAgreementMember" id="mpaa_ParentCompanyCreditAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" id="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="ContractLiabilitiesTableTextBlock" id="mpaa_ContractLiabilitiesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AntidilutiveSecuritiesEarningsPerShareAbstract" id="mpaa_AntidilutiveSecuritiesEarningsPerShareAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccountsReceivableDiscountProgramsAbstract" id="mpaa_AccountsReceivableDiscountProgramsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccountsReceivableDiscountProgramsTextBlock" id="mpaa_AccountsReceivableDiscountProgramsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DiscountRecordedAsInterestExpense" id="mpaa_DiscountRecordedAsInterestExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="AccountsReceivablesDiscounted" id="mpaa_AccountsReceivablesDiscounted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" id="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" id="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" id="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ReferenceInterestRateUnderOption1Floor" id="mpaa_ReferenceInterestRateUnderOption1Floor" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DebtInstrumentBasisSpreadOnVariableRateOption2" id="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RevolvingCreditFacilityCanadianBorrowersMember" id="mpaa_RevolvingCreditFacilityCanadianBorrowersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AmendedCreditFacilityMember" id="mpaa_AmendedCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ReferenceRateMember" id="mpaa_ReferenceRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CustomerReturnsRgaIssued" id="mpaa_CustomerReturnsRgaIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="TotalAccountsReceivableOffsetAccounts" id="mpaa_TotalAccountsReceivableOffsetAccounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="CustomerCoreReturnsAccrualsReclassifiedToNoncurrentContractLiability" id="mpaa_CustomerCoreReturnsAccrualsReclassifiedToNoncurrentContractLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="CustomerAllowancesEarned" id="mpaa_CustomerAllowancesEarned" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="CustomerCoreReturnsAccrualsReclassifiedToCurrentContractLiability" id="mpaa_CustomerCoreReturnsAccrualsReclassifiedToCurrentContractLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="CustomerPaymentDiscrepancies" id="mpaa_CustomerPaymentDiscrepancies" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="CustomerCoreReturnsAccrualsCurrent" id="mpaa_CustomerCoreReturnsAccrualsCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ImpactOfAdoptionOfNewRevenueRecognitionStandardOnAccountsReceivableTableTextBlock" id="mpaa_ImpactOfAdoptionOfNewRevenueRecognitionStandardOnAccountsReceivableTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" id="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="WarrantyAccrualIncludedInCustomerReturnsRgaIssued" id="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" id="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="NewAccountingPronouncementsRecentlyAdoptedAbstract" id="mpaa_NewAccountingPronouncementsRecentlyAdoptedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DocumentAndEntityInformationAbstract" id="mpaa_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccruedCorePaymentCurrent" id="mpaa_AccruedCorePaymentCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="AccruedCorePaymentNoncurrent" id="mpaa_AccruedCorePaymentNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BalanceSheetParentheticalInformationAbstract" id="mpaa_BalanceSheetParentheticalInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RevenuesRecognitionAbstract" id="mpaa_RevenuesRecognitionAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RemanufacturedCoresNominalPrice" id="mpaa_RemanufacturedCoresNominalPrice" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PercentageOfStockAdjustmentReturns" id="mpaa_PercentageOfStockAdjustmentReturns" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PercentageOfPossibleScrapAndLiquidationValuesOfPart" id="mpaa_PercentageOfPossibleScrapAndLiquidationValuesOfPart" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AmortizationPeriodForCorePremiums" id="mpaa_AmortizationPeriodForCorePremiums" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PercentageOfAggregateReturns" id="mpaa_PercentageOfAggregateReturns" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ForeignCurrencyExchangeContractAbstract" id="mpaa_ForeignCurrencyExchangeContractAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="StockRepurchaseProgramAbstract" id="mpaa_StockRepurchaseProgramAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="StockRepurchasedAndRetiredDuringPeriodCumulativeValue" id="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="StockRepurchasedAndRetiredCumulativeShares" id="mpaa_StockRepurchasedAndRetiredCumulativeShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="IncreaseDecreaseInAccruedCorePayment" id="mpaa_IncreaseDecreaseInAccruedCorePayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="DixieElectricLtdMember" id="mpaa_DixieElectricLtdMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BusinessCombinationContingentConsiderationPaymentPeriod" id="mpaa_BusinessCombinationContingentConsiderationPaymentPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="FairValueDisclosureContingentConsiderationAbstract" id="mpaa_FairValueDisclosureContingentConsiderationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BusinessCombinationContingentConsiderationLiabilityNoncurrentFairValueDisclosure" id="mpaa_BusinessCombinationContingentConsiderationLiabilityNoncurrentFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="DeferredCompensationFairValueDisclosure" id="mpaa_DeferredCompensationFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BusinessCombinationContingentConsiderationLiabilityCurrentFairValueDisclosure" id="mpaa_BusinessCombinationContingentConsiderationLiabilityCurrentFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="MechanicalPowerConversionLLCMember" id="mpaa_MechanicalPowerConversionLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TermOfResearchAndDevelopmentMilestoneEvent" id="mpaa_TermOfResearchAndDevelopmentMilestoneEvent" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="TermOfGrossProfitEarnOutConsiderationArrangement" id="mpaa_TermOfGrossProfitEarnOutConsiderationArrangement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ResearchAndDevelopmentEventMilestoneMember" id="mpaa_ResearchAndDevelopmentEventMilestoneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GrossProfitEarnOutConsiderationMember" id="mpaa_GrossProfitEarnOutConsiderationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="MeasurementInputWeightedAverageCostOfCapitalMember" id="mpaa_MeasurementInputWeightedAverageCostOfCapitalMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="SummaryOfStockOptionTransactionsAbstract" id="mpaa_SummaryOfStockOptionTransactionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="EscrowDepositRelatedToBusinessAcquisition" id="mpaa_EscrowDepositRelatedToBusinessAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
</xs:schema>
