Auto Module Lab logoAUTO MODULELAB
WASHINGTON · MAIL-IN SERVICE

Mercedes W164/X164/W251 EIS Repair in Washington

Ship your module from Seattle or anywhere in Washington — we complete the work in 24 hours and ship it back at the return speed you choose at checkout — standard to overnight.

$399 flat 24-Hour Turnaround ~3 day USPS from WA
Text Before You Buy

Why Washington customers mail in mercedes w164/x164/w251 eis repair

Washington has roughly 6.6 million registered vehicles, and trucks, SUVs & imports make up much of what Seattle-area shops and owners mail us. European platforms cluster in Seattle, Spokane, Tacoma, and most local Seattle shops sub bench jobs like mercedes w164/x164/w251 eis repair to a specialist instead of tooling up for one car. Cross-country northwest — about 3 days each way.

Metros we serve in Washington

SeattleSpokaneTacomaVancouver

Washington at a glance

  • ~6.6M registered vehicles statewide
  • Most common: trucks, SUVs & imports
  • Washington discontinued its emissions testing program in 2020 and has no statewide periodic safety inspection.

What you get

  • Component-level repair of the failed EIS (no donor required)
  • Original VIN binding + key pairing preserved
  • Full bench-test with your supplied working key
  • No additional ECU or ESL re-programming needed after install
  • 24-hour bench turnaround
  • Return shipping your choice at checkout — standard, 2-day, or overnight
  • Photo of completed bench-test before shipping back

Shipping timeline — Washington ↔ Arlington TX

USPS Priority routes far northwest through the Mountain network; about 3 days given the distance. Typical round-trip from Seattle or anywhere in Washington:

  1. Day 0

    You ship

    USPS Priority from WA, ~$13

  2. Day 3

    We receive

    Workshop opens + inspects

  3. Day 4

    Work done

    24-hour bench turnaround

  4. ~Day 7

    Back to you

    Return speed you chose at checkout

Washington FAQ

Common questions from customers shipping from Washington.

How long does shipping take from Washington to your Arlington TX workshop?
USPS Priority Mail from Seattle, WA reaches our Arlington workshop in about 3 business days. USPS Priority routes far northwest through the Mountain network; about 3 days given the distance. We start work the same day your module arrives and ship back next business day at the return speed you chose at checkout.
How much does it cost to ship a module from Washington?
USPS Priority flat-rate from Washington to Arlington TX runs about $13. The customer pays shipping to us; return shipping back to Washington is selected at checkout — $14.95 standard (3-5 business days), $29.95 UPS 2-Day, or $74.95 UPS Next Day Air, flat nationwide. Cross-country northwest — about 3 days each way.
Do you accept mercedes w164/x164/w251 eis repair modules from Washington?
Yes — we receive modules from Seattle, Spokane, Tacoma, Vancouver and the rest of Washington regularly. With about 6.6 million registered vehicles statewide, trucks, SUVs & imports are the bulk of what we see from Washington.
Is there a mercedes w164/x164/w251 eis repair shop in Seattle I should use instead?
Most Seattle shops don't keep the bench equipment for mercedes w164/x164/w251 eis repair — they'd forward the module to a specialist anyway, which adds a markup and a middleman. Going direct to us is usually faster and cheaper. Cross-country northwest — about 3 days each way.
Does Washington vehicle inspection or emissions testing affect this service?
Washington discontinued its emissions testing program in 2020 and has no statewide periodic safety inspection. Our service is bench module programming only — you remain responsible for your vehicle's compliance with all Washington and federal requirements.
Do I need to send a key?
YES — at least one working key. We bench-test the repaired EIS with your actual key to verify the immobilizer chain handshake works end-to-end. Without a key, we can't verify the repair.
What if no keys work at all?
You need the Key Replacement via EIS service instead ($150). We program a fresh key directly to the EIS in that case.

Full details

See the complete Mercedes W164/X164/W251 EIS Repair service page

Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMaryland

Ship from Washington today

Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Seattle: about a week.

(817) 678-3252